react.dev/css/react.scss

---
---
@import 'bourbon/bourbon';
@import '_variables';
@import '_typography';
@import '_solarized';

@mixin code-typography {
  font-family: 'source-code-pro', Menlo, Consolas, 'Courier New', monospace;
  line-height: 1.5;
  font-size: 13px;
  -webkit-text-size-adjust: none;
}

$skinnyContentWidth: 650px;
$contentWidth: 920px;
$contentPadding: 20px;
$columnWidth: 280px;
$columnGutter: 40px;
$twoColumnWidth: 2 * $columnWidth + $columnGutter;
$navHeight: 50px;

// Breakpoints
$bp-large: 960px;
$bp-medium: 640px;
$bp-small: 480px;

@mixin bp-small {
  @media (max-width: $bp-small) {
    @content;
  }
}

@mixin bp-medium {
  @media (max-width: $bp-medium) {
    @content;
  }
}

@mixin bp-large {
  @media (max-width: $bp-large) {
    @content;
  }
}

// basic reset
* {
  @include box-sizing(border-box);
  border: none;
  margin: 0;
  padding: 0;
}

html {
  background: $pageBg;
}



.left {
  float: left;
}

.right {
  float: right;
}


.container {
  padding-top: $navHeight;
  width: 100%;
}

.wrap {
  max-width: $contentWidth + (2 * $contentPadding);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;

  @include bp-large {
    padding-left: 10px;
    padding-right: 10px;
  }
}

.skinnyWrap {
  width: $skinnyContentWidth + (2 * $contentPadding);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

hr {
  height: 0;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #eee;
}

ul,
li {
  margin-left: 20px;
}

li + li {
  margin-top: 10px;
}

// Make header navigation linkable and on the screen. Used in documentation and
// blog posts.
h1, h2, h3, h4, h5, h6 {
  .anchor {
    margin-top: -$navHeight;
    position: absolute;
  }

  &:hover .hash-link {
    display: inline;
  }
}
.hash-link {
  color: $mediumTextColor;
  display: none;
}

// Main Nav

.nav-main {
  @include clearfix;
  background: $darkestColor;
  color: $lightTextColor;
  position: fixed;
  top: 0;
  height: $navHeight;
  box-shadow: 0 0 5px rgba(0, 0, 0, .5);
  width: 100%;
  z-index: 100;

  @include bp-large {
    height: auto;
  }

  a {
    color: $lightColor;
    text-decoration: none;
  }

  .nav-site {
    display: inline-flex;
    flex: 1;

    li {
      margin: 0;
    }

    li > a {
      box-sizing: content-box;
      padding: 0 10px;
      line-height: $navHeight;
      display: inline-block;
      height: $navHeight;
      color: #ddd;
      white-space: nowrap;

      @include bp-large {
        display: flex;
        justify-content: center;
        align-items: center;
        padding: 0 5px;
        line-height: inherit;
      }

      &:hover {
        color: #fff;
      }

      &.active {
        position: relative;
        color: $lightTextColor;
        background: #333;

        &:after {
          content: "";
          position: absolute;
          bottom: 0;
          left: 0;
          right: 0;
          border-bottom: 3px solid $primary;
        }

        @include bp-large {
          background: inherit;
        }
      }
    }

    .nav-site-item {
      &--hidden-sm {
        @include bp-large {
          display: none;
        }
      }
    }

    .nav-site-search {
      @include bp-large {
        position: absolute;
        z-index: 1;
        right: 0;
        top: 0;
        margin: 0 10px;

        &:focus {
          width: 170px;
        }
      }
    }
  }

  .nav-site-internal {
    margin: 0 0 0 20px;

    @include bp-large {
      margin: 0;
    }
  }

  .nav-site-external {
    float: right;
    margin: 0;

    @include bp-large {
      position: absolute;
      top: 0;
      right: 55px;
      float: none;
    }
  }

  .nav-home {
    color: #00d8ff;
    font-size: 24px;
    line-height: $navHeight;
    height: $navHeight;
    display: inline-block;

    @include bp-large {
      font-size: 20px;
    }
  }

  .nav-logo {
    vertical-align: middle;
    display: inline-block;

    @include bp-large {
      height: 30px;
      width: auto;
    }
  }

  ul {
    display: inline-block;
    vertical-align: top;
  }

  li {
    display: inline;
  }
}

.nav-lists {
  display: inline-block;
  vertical-align: top;
  width: calc(100% - 120px);

  @include bp-large {
    display: flex;
    width: calc(100% + 20px);
    margin: 0 -10px;
    font-size: 0.9em;

    li {
      display: flex;
      flex: 1 0 auto;
      align-items: center;

      a {
        flex: 1;
        text-align: center;
        line-height: 1.2;
      }
    }
  }
}

// Hero!

.hero {
  min-height: 300px;
  // background: $darkColor url(../img/header.png) no-repeat center;
  background: $darkColor;
  padding-top: 50px;
  color: $lightColor;
  font-weight: 300;

  .text {
    font-size: 64px;
    text-align: center;
  }

  .minitext {
    font-size: 16px;
    text-align: center;
    text-transform: uppercase;
  }

  strong {
    color: $blueColor;
    font-weight: 400;
  }
}

.buttons-unit {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 60px;
  text-align: center;
  font-size: 1em;

  a {
    color: $blueColor;
  }

  .button {
    font-size: 24px;
    background: $primary;
    color: $lightTextColor;

    &:active {
      background: darken($primary, 5%);
    }

    @include bp-large {
      margin: 5px;
      font-size: 1em;
    }
  }
}

// Downloads

.buttons-unit.downloads {
  margin: 30px 0;
}

// Docs Nav

.nav-docs {
  color: $darkColor;
  font-size: 14px;
  // position: fixed;
  float: left;
  width: 210px;

  @include bp-medium {
    width: 100%;
    padding-bottom: 40px;
  }

  ul {
    list-style: none;
    margin: 0;
  }
  ul ul {
    margin: 0 0 6px 20px;
  }
  li {
    line-height: 16px;
    margin: 0 0 6px;
  }
  h3 {
    text-transform: uppercase;
    font-size: 14px;
  }
  a {
    color: $mediumestColor;
    display: block;

    &:hover {
      text-decoration: none;
      color: $primary;
    }

    &.active {
      color: $primary;
    }

    &.external {
      &:after {
        content: "";
        display: inline-block;
        width: 10px;
        height: 10px;
        padding-left: 5px;
        @include retina-image('../img/external', 10px 10px);
        background-position: 100% 0;
        background-repeat: no-repeat;
        font-size: 10px;
        line-height: 1em;
        opacity: 0.5;
      }
    }
  }

  .nav-docs-section {
    border-bottom: 1px solid #ccc;
    border-top: 1px solid #eee;
    padding: 12px 0;

    &:first-child {
       padding-top: 0;
       border-top: 0;
    }

    &:last-child {
      padding-bottom: 0;
      border-bottom: 0;
    }

    > ul {
      @include bp-medium {
        columns: 2
      }

      @include bp-small {
        columns: 1;
      }

      li {
        margin: 0;

        a {
          padding: 0;
          line-height: 1.6;
        }
      }
    }
  }

}

.nav-blog {
  li {
    margin-bottom: 5px;
  }
}

// Home Page specifics

.home-section {
  margin: 50px 0;
}

.home-divider {
  border-top-color: #bbb;
  margin: 0 auto;
  width: 100%;
  max-width: 400px;
}

.skinny-row {
  @include clearfix;
}

.skinny-col {
  float: left;
  margin-left: $columnGutter;
  width: ($skinnyContentWidth - $columnGutter) / 2;
  &:first-child {
    margin-left: 0;
  }
}

.marketing-row {
  @include clearfix;
  margin: 50px 0;
}

.marketing-col {
  float: left;
  margin-left: 40px;
  width: $columnWidth;

  @include bp-large {
    margin: 0;
    width: 100%;
  }

  h3 {
    color: $darkColor;
    font-size: 24px;
    line-height: 28px;
    font-weight: normal;
  }
  p {
    font-size: 16px;
  }
}

.marketing-col:first-child {
  margin-left: 0;
}

#examples h3, .home-presentation h3 {
  color: $darkColor;
  font-size: 24px;
  font-weight: normal;
  margin-bottom: 5px;
}

#examples {
  p {
    margin: 0 0 25px 0;
    max-width: $twoColumnWidth;
  }

  .example {
    margin-top: 60px;
  }

  #todoExample {
    font-size: 14px;
    ul {
      list-style-type: square;
      margin: 0 0 10px 0;
    }
    input {
      border: 1px solid #ccc;
      font: 14px proxima-nova, $helvetica;
      padding: 3px;
      width: 150px;
    }
    button {
      font: 14px proxima-nova, $helvetica;
      margin-left: 5px;
      padding: 4px 10px;
    }
  }

  #markdownExample {
    textarea {
      border: 1px solid #ccc;
      font: 14px proxima-nova, $helvetica;
      margin-bottom: 10px;
      padding: 5px;
    }
  }
}

.home-bottom-section {
  margin-bottom: 100px;
}

.docs-nextprev {
  @include clearfix;
}

/* JSX Compiler */

.jsxCompiler {
  margin: 0 auto;
  padding-top: 20px;
  width: 1220px;

  label.compiler-option {
    display: block;
    margin-top: 5px;
  }

  #jsxCompiler {
    margin-top: 20px;
  }

  .playgroundPreview {
    padding: 0;
    width: 600px;
    word-wrap: break-word;

    pre {
      @include code-typography;
    }
  }

  .playgroundError {
    // The compiler view kills padding in order to render the CodeMirror code
    // more nicely. For the error view, put a padding back
    padding: 15px 20px;
  }
}

.docs-prev {
  float: left;
}

.docs-next {
  float: right;
}

section.black content {
  padding-bottom: 18px;
}

/**
 * Blog
 */

.blogContent {
  @include clearfix;

  padding-top: 20px;
  padding-bottom: 80px;
  @include bp-medium {
    padding-bottom: 0;
  }

  blockquote {
    padding: 5px 15px;
    margin: 20px 0;
    background-color: #f8f5ec;
    border-left: 5px solid #f7ebc6;
  }

  h2 > code {
    font-size: inherit;
    line-height: inherit;
    color: #555;
    background-color: rgba(0,0,0,0.04);
  }
}

/**
 * Docs
 */

.documentationContent {
  @include clearfix;

  .subHeader {
    font-size: 24px;
  }


  // H2s form documentation topic dividers. Extra space helps.
  h2 {
    margin-top: 30px;
  }

  padding-top: 20px;
  padding-bottom: 80px;
  @include bp-medium {
    padding-bottom: 0;
  }

  // Make a notice box out of blockquotes in the documentation:
  blockquote {
      padding: 15px 30px 15px 15px;
      margin: 20px 0;
      background-color: rgba(248, 245, 236, 0.5);
      border-left: 5px solid rgba(191, 87, 73, 0.2);
    h4 {
      margin-top: 0;
    }
    p {
      margin-bottom: 0;
    }
    // Treat first child as the title - promote to H4.
    p:first-child {
      font-weight: bold;
      font-size: 17.5px;
      line-height: 20px;
      margin-top: 0;
      text-rendering: optimizelegibility;
    }
  }
}

.docs-prevnext {
  padding-top: 40px;
  padding-bottom: 40px;
}

/* Button */

.button {
  @include background(linear-gradient($buttonGreyTop, $buttonGreyBottom));
  // border: 1px solid $darkestColor;
  border-radius: 4px;
  padding: 8px 16px;
  font-size: 18px;
  font-weight: 400;
  margin: 0 12px;
  // word-spacing: -2px;
  // letter-spacing: 1px;
  display: inline-block;
  color: $lightTextColor;
  text-decoration: none;
  text-shadow: 0 1px 3px rgba(0, 0, 0, .3);
  box-shadow: 0 1px 1px rgba(0, 0, 0, .2);
  text-decoration: none;

  &:hover {
    text-decoration: none;
  }

  &:active {
    box-shadow: none;
  }
}

.hero {
  .button {
    box-shadow: 1px 3px 3px rgba(0, 0, 0, .3);
  }
}

.button.blue {
  @include background(linear-gradient($buttonBlueTop, $buttonBlueBottom));
}


/* Row */

.row {
  padding-bottom: 4px;
}

.row .span4 {
  width: 33.33%;
  display: table-cell;
}

.row .span8 {
  width: 66.66%;
  display: table-cell;
}

.row .span6 {
  width: 50%;
  display: table-cell;
}


/* Content */

p {
  margin: 10px 0;
}

.highlight {
  padding: 10px;
  margin-bottom: 20px;
}

figure {
  text-align: center;
}

.inner-content {
  float: right;
  width: 100%;
  max-width: $skinnyContentWidth;

  @include bp-large {
    width: calc(100% - 240px);
    max-width: 100%;
  }

  @include bp-medium {
    width: 100%;
  }
}

.nosidebar .inner-content {
  float: none;
  margin: 0 auto;
}

h1 {
  // Contains .edit-page-link
  @include clearfix;
}

.edit-page-link {
  float: right;
  font-size: 16px;
  font-weight: normal;
  line-height: 20px;
  margin-top: 17px;

  @include bp-medium {
    float: left;
    width: 100%;
  }
}

/**
 * Community
 */

.communityContent {
  @include clearfix;

  h3 {
    margin-top: 30px;
  }

  padding-top: 20px;

  blockquote {
    padding: 5px 15px;
    margin: 20px 0;
    background-color: #f8f5ec;
    border-left: 5px solid #f7ebc6;
  }

  th {
    padding-right: 6px;
    text-align: right;
    vertical-align: top;
    font-weight: normal;
    @include code-typography;
  }

  td {
    vertical-align: top;
    text-align: left;
  }
}


/* Blog */

.post-list-item + .post-list-item {
  margin-top: 60px;
}

/* CodeMirror */

div.CodeMirror pre, div.CodeMirror-linenumber, code {
  @include code-typography;
}

div.CodeMirror-linenumber {
  text-align: right;
}

.CodeMirror, div.CodeMirror-gutters, div.highlight {
  border: none;
}

/* hide the cursor. Mostly used when code's in plain JS */
.CodeMirror-readonly div.CodeMirror-cursor {
  visibility: hidden;
}

small code,
li code,
p code {
  color: #555;
  background-color: rgba(0, 0, 0, .04);
  padding: 1px 3px;
}

small a code,
li a code,
p a code {
  color: inherit;
}

.cm-s-default span.cm-string-2 {
  color: inherit;
}

.playground {
  @include clearfix;
}

.playground-tab {
  border-bottom: none !important;
  border-radius: 3px 3px 0 0;
  padding: 6px 8px;
  font-size: 12px;
  font-weight: bold;
  color: #c2c0bc;
  background-color: #f1ede4;
  display: inline-block;
  cursor: pointer;
}

.playgroundCode,
.playground-tab,
.playgroundPreview {
  border: 1px solid rgba(16,16,16,0.1);
}

.playground-tab-active {
  color: $darkestColor;
}

.playgroundCode {
  border-radius: 0 3px 3px 3px;
  float: left;
  overflow: hidden;
  width: 100%;
  max-width: $twoColumnWidth;
}

.playgroundPreview {
  background-color: white;
  border-radius: 3px;
  float: right;
  padding: 15px 20px;
  width: $columnWidth;
  word-wrap: break-word;
}

.playgroundError {
  color: darken($primary, 5%);
  font-size: 15px;
}

.MarkdownEditor textarea {
  width: 100%;
  height: 100px
}

.MarkdownEditor .content {
  white-space: pre-wrap;
  word-break: break-word;
}

.hll {
  background-color: #f7ebc6;
  border-left: 5px solid #f7d87c;
  display: block;
  margin-left: -14px;
  margin-right: -14px;
  padding-left: 9px;
}

/* CodeMirror doesn't support <jsx> syntax. Instead of highlighting it
   as error, just ignore it */
.highlight .javascript .err {
  background-color: transparent;
  color: inherit;
}

.highlight {
  position: relative;
  margin-bottom: 14px;
  padding: 30px 14px 14px;
  border: none;
  border-radius: 0;
  overflow: auto;
}


.highlight pre {
  padding: 0;
  margin-top: 0;
  margin-bottom: 0;
  background-color: transparent;
  border: 0;
  float: left;
  min-width: 100%;
}

.highlight pre code {
  /* Respect line-height defined in <code> styles above */
  display: block;

  /* Cancel out styles for `li code` in case we have a <pre> within an <li>. */
  background: none;
  padding: 0;
}

.highlight pre .lineno {
  display: inline-block;
  width: 22px;
  padding-right: 5px;
  margin-right: 10px;
  color: #bebec5;
  text-align: right;
}

/* Echo out a label for the example */

.highlight:after {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  padding: 3px 7px;
  font-size: 12px;
  font-weight: bold;
  color: #c2c0bc;
  background-color: #f1ede4;
  content: "Code";
}

.downloadCenter {
  text-align: center;
  margin-top: 20px;
  margin-bottom: 25px;
}

.downloadSection:hover {
  text-decoration: none !important;
}

@include bp-large {
  .nav-main {
    position: relative;
  }
  .container {
    padding-top: 0;
  }
}

.post {
  margin-bottom: 30px;
}

.post img {
  max-width: 100%;
  height: auto;
}

.pagination {
  margin-bottom: 30px;

  /* Trick to get the wrapper to expand to fit floating elements */
  width: 100%;
  overflow: hidden;

  .next {
    float: right;
  }
}

// Twitter embeds. Need to !important because they inline margin on the iframe.
div[data-twttr-id] iframe {
  margin: 10px auto !important;
  width: 100% !important;
}

.fb_iframe_widget {
  max-width: 100%;

  * {
    max-width: 100%;
  }
}

#twitter-widget-0 {
  @include bp-large {
    display: none !important; // Need !important because they inline display on the iframe.
  }
}

/* Acknowledgements */

.three-column {
  @include clearfix;
}

.three-column > ul {
  float: left;
  margin-left: 30px;
  width: 190px;
}

.three-column > ul:first-child {
  margin-left: 20px;
}


/* Algolia Doc Search */

input#algolia-doc-search {
  background: transparent url('/react/img/search.png') no-repeat 10px center;
  background-size: 16px 16px;

  position: relative;
  vertical-align: top;
  margin-left: 10px;
  padding: 0 10px;
  padding-left: 35px;
  height: 30px;
  margin-top: 10px;
  font-size: 16px;
  line-height: 20px;
  background-color: #333;
  border-radius: 4px;
  color: white;
  outline: none;
  width: 170px;

  transition: width .2s ease;

  &:focus {
    width: 240px;
  }

  @include bp-large {
    background-color: transparent;
    width: 0;
    cursor: pointer;

    &:focus {
      width: 200px;
      background-color: #333;
    }
  }
}

.algolia-autocomplete .aa-dropdown-menu {
  margin-left: -110px;
  margin-top: -4px;
}

.algolia-autocomplete {
  vertical-align: top;
  height: 53px;
}

.algolia-docsearch-suggestion {
  border-bottom-color: #c05b4d;
}

.algolia-docsearch-suggestion--category-header {
  background-color: #cc7a6f;
}

.algolia-docsearch-suggestion--highlight {
  color: #c05b4d;
}

.algolia-docsearch-suggestion--category-header .algolia-docsearch-suggestion--highlight {
  background-color: #c05b4d;
}

.aa-cursor .algolia-docsearch-suggestion--content {
  color: #c05b4d;
}

.aa-cursor .algolia-docsearch-suggestion {
  background: #f1f3f5;
}

/**
 * Footer
 */

footer.nav-footer {
  box-sizing: border-box;
  border: none;
  font-weight: 300;
  color: #202020;
  font-size: 15px;
  line-height: 24px;
  background: #2D2D2D;
  box-shadow: inset 0 10px 10px -5px #0d1116;
  padding-top: 2em;
  padding-bottom: 2em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
footer .sitemap {
  display: flex;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto 3em;
}
footer .sitemap div {
  flex: 1;
}
footer .sitemap .nav-home {
  display: table;
  margin: -12px 20px 0 0;
  padding: 10px;
  width: 60px;
  height: 60px;
  transition: opacity 0.15s ease-in-out;
  background: url("../img/logo_small_gray.png") no-repeat content-box;
}
footer .sitemap .nav-home:hover,
footer .sitemap .nav-home:focus {
  background-image: url("../img/logo_small.png");
}
@media screen and (max-width: 740px) {
  footer .sitemap {
    display: none;
  }
}

footer .sitemap a {
  color: white;
  display: table;
  margin: 2px -10px;
  padding: 3px 10px;
}
footer .sitemap a:hover,
footer .sitemap a:focus {
  color: #61dafb;
  text-decoration: none;
}
footer .sitemap h6 > a:hover,
footer .sitemap h6 > a:focus {
  color: #61dafb;
  text-decoration: none;
}
footer .sitemap h5,
footer .sitemap h6 {
  margin: 0 0 10px;
}
footer .sitemap h5,
footer .sitemap h6,
footer .sitemap h5 > a,
footer .sitemap h6 > a {
  color: white;
}
footer .sitemap h5 > a,
footer .sitemap h6 > a {
  margin: 0 -10px;
}
footer .fbOpenSource {
  display: block;
  margin: 1em auto;
  opacity: 0.4;
  transition: opacity 0.15s ease-in-out;
  width: 170px;
}
footer .fbOpenSource:hover {
  opacity: 1.0;
}
footer .copyright {
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
}