692 lines
12 KiB
CSS
692 lines
12 KiB
CSS
/* Global variables. */
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:root,
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::backdrop {
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/* Set sans-serif & mono fonts */
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--sans-font: -apple-system, BlinkMacSystemFont, "Avenir Next", Avenir,
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"Nimbus Sans L", Roboto, "Noto Sans", "Segoe UI", Arial, Helvetica,
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"Helvetica Neue", sans-serif;
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--mono-font: Consolas, Menlo, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
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--standard-border-radius: 5px;
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/* Default (light) theme */
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--bg: #fff;
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--accent-bg: #f5f7ff;
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--text: #212121;
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--text-light: #585858;
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--border: #898EA4;
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--accent: #0d47a1;
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--code: #d81b60;
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--preformatted: #444;
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--marked: #ffdd33;
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--disabled: #efefef;
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}
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/* Dark theme */
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@media (prefers-color-scheme: dark) {
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:root,
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::backdrop {
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color-scheme: dark;
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--bg: #282a36;
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--accent-bg: #393b47;
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--text: #f8f8f2;
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--text-light: #e7e7e1;
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--border: #50fa7b;
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--accent: #8be9fd;
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--code: #ff79c6;
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--preformatted: #f1fa8c;
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--marked: #ff5555;
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--disabled: #6272a4;
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}
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/* Add a bit of transparency so light media isn't so glaring in dark mode */
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img,
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video {
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opacity: 0.8;
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}
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}
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/* Reset box-sizing */
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*, *::before, *::after {
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box-sizing: border-box;
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}
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/* Reset default appearance */
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textarea,
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select,
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input,
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progress {
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appearance: none;
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-webkit-appearance: none;
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-moz-appearance: none;
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}
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html {
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/* Set the font globally */
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font-family: var(--sans-font);
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scroll-behavior: smooth;
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}
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/* Make the body a nice central block */
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body {
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color: var(--text);
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background-color: var(--bg);
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font-size: 1.15rem;
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line-height: 1.5;
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display: grid;
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grid-template-columns: 1fr min(45rem, 90%) 1fr;
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margin: 0;
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}
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body > * {
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grid-column: 2;
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}
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/* Make the header bg full width, but the content inline with body */
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body > header {
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background-color: var(--accent-bg);
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border-bottom: 1px solid var(--border);
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text-align: center;
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padding: 0 0.5rem 2rem 0.5rem;
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grid-column: 1 / -1;
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}
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body > header > *:only-child {
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margin-block-start: 2rem;
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}
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body > header h1 {
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max-width: 1200px;
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margin: 1rem auto;
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}
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body > header p {
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max-width: 40rem;
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margin: 1rem auto;
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}
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/* Add a little padding to ensure spacing is correct between content and header > nav */
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main {
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padding-top: 1.5rem;
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}
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body > footer {
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margin-top: 4rem;
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padding: 2rem 1rem 1.5rem 1rem;
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color: var(--text-light);
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font-size: 0.9rem;
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text-align: center;
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border-top: 1px solid var(--border);
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}
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/* Format headers */
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h1 {
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font-size: 3rem;
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}
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h2 {
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font-size: 2.6rem;
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margin-top: 3rem;
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}
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h3 {
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font-size: 2rem;
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margin-top: 3rem;
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}
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h4 {
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font-size: 1.44rem;
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}
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h5 {
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font-size: 1.15rem;
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}
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h6 {
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font-size: 0.96rem;
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}
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p {
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margin: 1.5rem 0;
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}
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/* Prevent long strings from overflowing container */
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p, h1, h2, h3, h4, h5, h6 {
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overflow-wrap: break-word;
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}
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/* Fix line height when title wraps */
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h1,
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h2,
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h3 {
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line-height: 1.1;
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}
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/* Reduce header size on mobile */
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@media only screen and (max-width: 720px) {
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h1 {
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font-size: 2.5rem;
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}
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h2 {
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font-size: 2.1rem;
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}
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h3 {
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font-size: 1.75rem;
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}
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h4 {
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font-size: 1.25rem;
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}
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}
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/* Format links & buttons */
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a,
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a:visited {
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color: var(--accent);
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}
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a:hover {
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text-decoration: none;
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}
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button,
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.button,
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a.button, /* extra specificity to override a */
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input[type="submit"],
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input[type="reset"],
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input[type="button"],
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label[type="button"] {
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border: 1px solid var(--accent);
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background-color: var(--accent);
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color: var(--bg);
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padding: 0.5rem 0.9rem;
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text-decoration: none;
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line-height: normal;
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}
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.button[aria-disabled="true"],
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input:disabled,
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textarea:disabled,
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select:disabled,
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button[disabled] {
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cursor: not-allowed;
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background-color: var(--disabled);
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border-color: var(--disabled);
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color: var(--text-light);
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}
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input[type="range"] {
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padding: 0;
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}
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/* Set the cursor to '?' on an abbreviation and style the abbreviation to show that there is more information underneath */
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abbr[title] {
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cursor: help;
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text-decoration-line: underline;
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text-decoration-style: dotted;
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}
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button:enabled:hover,
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.button:not([aria-disabled="true"]):hover,
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input[type="submit"]:enabled:hover,
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input[type="reset"]:enabled:hover,
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input[type="button"]:enabled:hover,
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label[type="button"]:hover {
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filter: brightness(1.4);
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cursor: pointer;
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}
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.button:focus-visible,
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button:focus-visible:where(:enabled),
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input:enabled:focus-visible:where(
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[type="submit"],
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[type="reset"],
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[type="button"]
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) {
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outline: 2px solid var(--accent);
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outline-offset: 1px;
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}
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/* Format navigation */
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header > nav {
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font-size: 1rem;
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line-height: 2;
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padding: 1rem 0 0 0;
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}
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/* Use flexbox to allow items to wrap, as needed */
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header > nav ul,
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header > nav ol {
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align-content: space-around;
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align-items: center;
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display: flex;
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flex-direction: row;
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flex-wrap: wrap;
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justify-content: center;
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list-style-type: none;
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margin: 0;
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padding: 0;
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}
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/* List items are inline elements, make them behave more like blocks */
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header > nav ul li,
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header > nav ol li {
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display: inline-block;
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}
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header > nav a,
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header > nav a:visited {
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margin: 0 0.5rem 1rem 0.5rem;
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border: 1px solid var(--border);
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border-radius: var(--standard-border-radius);
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color: var(--text);
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display: inline-block;
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padding: 0.1rem 1rem;
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text-decoration: none;
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}
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header > nav a:hover,
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header > nav a.current,
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header > nav a[aria-current="page"] {
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border-color: var(--accent);
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color: var(--accent);
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cursor: pointer;
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}
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/* Reduce nav side on mobile */
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@media only screen and (max-width: 720px) {
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header > nav a {
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border: none;
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padding: 0;
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text-decoration: underline;
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line-height: 1;
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}
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}
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/* Consolidate box styling */
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aside, details, pre, progress {
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background-color: var(--accent-bg);
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border: 1px solid var(--border);
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border-radius: var(--standard-border-radius);
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margin-bottom: 1rem;
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}
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aside {
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font-size: 1rem;
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width: 30%;
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padding: 0 15px;
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margin-inline-start: 15px;
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float: right;
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}
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*[dir="rtl"] aside {
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float: left;
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}
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/* Make aside full-width on mobile */
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@media only screen and (max-width: 720px) {
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aside {
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width: 100%;
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float: none;
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margin-inline-start: 0;
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}
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}
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article, fieldset, dialog {
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border: 1px solid var(--border);
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padding: 1rem;
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border-radius: var(--standard-border-radius);
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margin-bottom: 1rem;
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}
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article h2:first-child,
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section h2:first-child {
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margin-top: 1rem;
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}
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section {
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border-top: 1px solid var(--border);
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border-bottom: 1px solid var(--border);
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padding: 2rem 1rem;
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margin: 3rem 0;
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}
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/* Don't double separators when chaining sections */
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section + section,
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section:first-child {
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border-top: 0;
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padding-top: 0;
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}
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section:last-child {
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border-bottom: 0;
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padding-bottom: 0;
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}
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details {
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padding: 0.7rem 1rem;
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}
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summary {
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cursor: pointer;
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font-weight: bold;
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padding: 0.7rem 1rem;
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margin: -0.7rem -1rem;
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word-break: break-all;
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}
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details[open] > summary + * {
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margin-top: 0;
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}
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details[open] > summary {
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margin-bottom: 0.5rem;
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}
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details[open] > :last-child {
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margin-bottom: 0;
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}
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/* Format tables */
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table {
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border-collapse: collapse;
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margin: 1.5rem 0;
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}
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td,
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th {
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border: 1px solid var(--border);
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text-align: start;
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padding: 0.5rem;
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}
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th {
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background-color: var(--accent-bg);
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font-weight: bold;
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}
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tr:nth-child(even) {
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/* Set every other cell slightly darker. Improves readability. */
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background-color: var(--accent-bg);
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}
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table caption {
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font-weight: bold;
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margin-bottom: 0.5rem;
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}
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/* Format forms */
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textarea,
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select,
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input,
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button,
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.button {
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font-size: inherit;
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font-family: inherit;
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padding: 0.5rem;
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margin-bottom: 0.5rem;
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border-radius: var(--standard-border-radius);
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box-shadow: none;
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max-width: 100%;
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display: inline-block;
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}
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textarea,
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select,
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input {
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color: var(--text);
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background-color: var(--bg);
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border: 1px solid var(--border);
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}
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label {
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display: block;
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}
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textarea:not([cols]) {
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width: 100%;
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}
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/* Add arrow to drop-down */
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select:not([multiple]) {
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background-image: linear-gradient(45deg, transparent 49%, var(--text) 51%),
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linear-gradient(135deg, var(--text) 51%, transparent 49%);
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background-position: calc(100% - 15px), calc(100% - 10px);
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background-size: 5px 5px, 5px 5px;
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background-repeat: no-repeat;
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padding-inline-end: 25px;
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}
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*[dir="rtl"] select:not([multiple]) {
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background-position: 10px, 15px;
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}
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/* checkbox and radio button style */
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input[type="checkbox"],
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input[type="radio"] {
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vertical-align: middle;
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position: relative;
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width: min-content;
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}
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input[type="checkbox"] + label,
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input[type="radio"] + label {
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display: inline-block;
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}
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input[type="radio"] {
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border-radius: 100%;
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}
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input[type="checkbox"]:checked,
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input[type="radio"]:checked {
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background-color: var(--accent);
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}
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input[type="checkbox"]:checked::after {
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/* Creates a rectangle with colored right and bottom borders which is rotated to look like a check mark */
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content: " ";
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width: 0.18em;
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height: 0.32em;
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border-radius: 0;
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position: absolute;
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top: 0.05em;
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left: 0.17em;
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background-color: transparent;
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border-right: solid var(--bg) 0.08em;
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border-bottom: solid var(--bg) 0.08em;
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font-size: 1.8em;
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transform: rotate(45deg);
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}
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input[type="radio"]:checked::after {
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/* creates a colored circle for the checked radio button */
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content: " ";
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width: 0.25em;
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height: 0.25em;
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border-radius: 100%;
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position: absolute;
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top: 0.125em;
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background-color: var(--bg);
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left: 0.125em;
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font-size: 32px;
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}
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/* Makes input fields wider on smaller screens */
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@media only screen and (max-width: 720px) {
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textarea,
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select,
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input {
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width: 100%;
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}
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}
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/* Set a height for color input */
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input[type="color"] {
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height: 2.5rem;
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padding: 0.2rem;
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}
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/* do not show border around file selector button */
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input[type="file"] {
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border: 0;
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}
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/* Misc body elements */
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hr {
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border: none;
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height: 1px;
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background: var(--border);
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margin: 1rem auto;
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}
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mark {
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padding: 2px 5px;
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border-radius: var(--standard-border-radius);
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background-color: var(--marked);
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color: black;
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}
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mark a {
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color: #0d47a1;
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}
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img,
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video {
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max-width: 100%;
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height: auto;
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border-radius: var(--standard-border-radius);
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}
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figure {
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margin: 0;
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display: block;
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overflow-x: auto;
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}
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figcaption {
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text-align: center;
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font-size: 0.9rem;
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color: var(--text-light);
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margin-bottom: 1rem;
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}
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blockquote {
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margin-inline-start: 2rem;
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margin-inline-end: 0;
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margin-block: 2rem;
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padding: 0.4rem 0.8rem;
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border-inline-start: 0.35rem solid var(--accent);
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color: var(--text-light);
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font-style: italic;
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}
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cite {
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font-size: 0.9rem;
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color: var(--text-light);
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font-style: normal;
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}
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dt {
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color: var(--text-light);
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}
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/* Use mono font for code elements */
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code,
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pre,
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pre span,
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kbd,
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samp {
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font-family: var(--mono-font);
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color: var(--code);
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}
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kbd {
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color: var(--preformatted);
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border: 1px solid var(--preformatted);
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border-bottom: 3px solid var(--preformatted);
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border-radius: var(--standard-border-radius);
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padding: 0.1rem 0.4rem;
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}
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pre {
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padding: 1rem 1.4rem;
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max-width: 100%;
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overflow: auto;
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color: var(--preformatted);
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}
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/* Fix embedded code within pre */
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pre code {
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color: var(--preformatted);
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background: none;
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margin: 0;
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padding: 0;
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}
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/* Progress bars */
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/* Declarations are repeated because you */
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/* cannot combine vendor-specific selectors */
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progress {
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width: 100%;
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}
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progress:indeterminate {
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background-color: var(--accent-bg);
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}
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progress::-webkit-progress-bar {
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border-radius: var(--standard-border-radius);
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background-color: var(--accent-bg);
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}
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progress::-webkit-progress-value {
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border-radius: var(--standard-border-radius);
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background-color: var(--accent);
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}
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progress::-moz-progress-bar {
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border-radius: var(--standard-border-radius);
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background-color: var(--accent);
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transition-property: width;
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transition-duration: 0.3s;
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}
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progress:indeterminate::-moz-progress-bar {
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background-color: var(--accent-bg);
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}
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dialog {
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max-width: 40rem;
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margin: auto;
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}
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dialog::backdrop {
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background-color: var(--bg);
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opacity: 0.8;
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}
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@media only screen and (max-width: 720px) {
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dialog {
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max-width: 100%;
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margin: auto 1em;
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}
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}
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/* Superscript & Subscript */
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/* Prevent scripts from affecting line-height. */
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sup, sub {
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vertical-align: baseline;
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position: relative;
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}
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sup {
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top: -0.4em;
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}
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sub {
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top: 0.3em;
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}
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/* Classes for notices */
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.notice {
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background: var(--accent-bg);
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border: 2px solid var(--border);
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border-radius: 5px;
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padding: 1.5rem;
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margin: 2rem 0;
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}
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