mastodon/app/javascript/styles/about.scss

.about-body {
  .wrapper {
    max-width: 600px;
    margin: 0 auto;
    color: $ui-primary-color;
    padding-top: 50px;
    padding-bottom: 50px;

    &.thicc {
      max-width: 800px;
    }
  }

  h1 {
    font: 46px/52px 'mastodon-font-sans-serif', sans-serif;
    font-weight: 600;
    margin-bottom: 20px;
    color: $ui-highlight-color;
    padding: 20px 0;

    img {
      margin-bottom: -5px;
      margin-right: 5px;
      width: 46px;
      height: 46px;
    }
  }

  h2 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 24px;
    line-height: 28px;
    font-weight: 400;
    margin-bottom: 20px;
    color: $primary-text-color;
  }

  h3 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 20px;
    line-height: 28px;
    font-weight: 400;
    margin-bottom: 20px;
    color: $ui-secondary-color;
  }

  ul,
  ol {
    list-style: inherit;
    margin-left: 20px;

    &[type='a'] {
      list-style-type: lower-alpha;
    }

    &[type='i'] {
      list-style-type: lower-roman;
    }
  }

  li > ol,
  li > ul {
    margin-top: 20px;
  }

  p,
  li {
    font: 16px/28px 'mastodon-font-sans-serif', sans-serif;
    font-weight: 400;
    margin-bottom: 12px;

    a {
      color: $ui-highlight-color;
      text-decoration: underline;
    }
  }

  em {
    display: inline-block;
    padding: 7px 7px 5px;
    margin: 0 2px;
    background: $ui-primary-color;
    color: $ui-base-color;
    font: 16px/16px 'mastodon-font-sans-serif', sans-serif;
    font-weight: 300;
  }

  .screenshot {
    box-shadow: 0 0 15px rgba($base-shadow-color, 0.4);
    margin-bottom: 26px;

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
  }

  .actions {
    overflow: hidden;
    margin-bottom: 20px;

    .info {
      float: right;
      text-align: right;
      line-height: 36px;

      a {
        color: $ui-primary-color;
        text-decoration: underline;
      }
    }
  }

  @media screen and (max-width: 625px) {
    .wrapper {
      padding: 20px;
    }
  }
}

.information-board {
  margin: 20px 0;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid lighten($ui-base-color, 10%);
  border-bottom: 1px solid lighten($ui-base-color, 10%);
  padding-right: 14px;

  .section {
    flex: 1 0 0;
    padding: 14px;
    text-align: right;
    font: 16px/28px 'mastodon-font-sans-serif', sans-serif;

    span,
    strong {
      display: block;
    }

    span {
      font-size: 16px;

      &:last-child {
        color: $ui-secondary-color;
        font-size: 14px;
      }
    }

    strong {
      font-weight: 500;
      font-size: 32px;
      line-height: 48px;
      color: $primary-text-color;
    }
  }

  @media screen and (max-width: 500px) {
    flex-direction: column;

    .section {
      text-align: left;
    }
  }
}

.owner {
  text-align: center;

  .avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    margin-bottom: 15px;

    img {
      display: block;
      width: 80px;
      height: 80px;
      border-radius: 48px;
    }
  }

  .name {
    font-size: 14px;

    a {
      display: block;
      color: $primary-text-color;
      text-decoration: none;

      &:hover {
        .display_name {
          text-decoration: underline;
        }
      }
    }

    .username {
      display: block;
      color: $ui-primary-color;
    }
  }
}

.contact-email {
  text-align: center;
  margin: 40px 0;

  strong {
    display: block;
    color: $primary-text-color;
    word-break: break-word;
  }
}

.sidebar-layout {
  display: flex;

  .main {
    flex: 1 1 auto;
    padding: 14px 0;

    .panel {
      padding-right: 14px;
    }
  }

  .sidebar {
    border-left: 1px solid lighten($ui-base-color, 10%);
    width: 200px;
    flex: 0 0 auto;
  }

  .panel {
    .panel-header {
      background: lighten($ui-base-color, 10%);
      padding: 7px 14px;
      text-transform: uppercase;
      font-size: 12px;
      font-weight: 500;
    }

    .panel-body {
      padding: 14px;
    }

    .panel-list {
      ul {
        list-style: none;
        margin: 0;

        li {
          margin: 0;
          font-family: inherit;
          font-size: 13px;
          line-height: 18px;

          a {
            display: block;
            padding: 7px 14px;
            color: rgba($primary-text-color, 0.7);
            text-decoration: none;
            transition: all 200ms linear;

            i.fa {
              margin-right: 5px;
            }

            &:hover {
              color: $primary-text-color;
              background-color: darken($ui-base-color, 5%);
              transition: all 100ms linear;
            }

            &.selected {
              color: $primary-text-color;
              background-color: $ui-highlight-color;

              &:hover {
                background-color: lighten($ui-highlight-color, 5%);
              }
            }
          }
        }
      }
    }
  }

  @media screen and (max-width: 625px) {
    flex-direction: column;

    .sidebar {
      border: 1px solid lighten($ui-base-color, 10%);
      width: auto;
    }
  }
}

.features-list__row {
  display: flex;
  padding: 10px 0;
  justify-content: space-between;

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

  .visual {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    margin-left: 15px;

    .fa {
      display: block;
      color: $ui-primary-color;
      font-size: 48px;
    }
  }

  .text {
    font-size: 16px;
    line-height: 30px;
    color: lighten($ui-base-color, 26%);

    h6 {
      font-weight: 500;
      color: $ui-primary-color;
    }
  }
}

.landing-page {
  .header-wrapper {
    padding-top: 15px;
    background: $ui-base-color;
    background: linear-gradient(150deg, lighten($ui-base-color, 8%), $ui-base-color);
    position: relative;

    .mascot-container {
      max-width: 800px;
      margin: 0 auto;
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 100%;
    }

    .mascot {
      position: absolute;
      bottom: -14px;
      width: auto;
      height: auto;
      left: 60px;
      z-index: 3;
    }
  }

  p,
  li {
    font: inherit;
    font-weight: inherit;
    margin-bottom: 0;
  }

  .header {
    line-height: 30px;
    overflow: hidden;

    .container {
      display: flex;
      justify-content: space-between;
    }

    .hero {
      margin-top: 50px;
      align-items: center;
      position: relative;

      .floats {
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;

        img {
          position: absolute;
          transition: all 0.1s linear;
          animation-name: floating;
          animation-duration: 1.7s;
          animation-iteration-count: infinite;
          animation-direction: alternate;
          animation-timing-function: linear;
          z-index: 2;
        }

        .float-1 {
          height: 170px;
          right: -120px;
          bottom: 0;
        }

        .float-2 {
          height: 100px;
          right: 210px;
          bottom: 0;
          animation-delay: 0.2s;
        }

        .float-3 {
          height: 140px;
          right: 110px;
          top: -30px;
          animation-delay: 0.1s;
        }
      }

      .simple_form,
      .closed-registrations-message {
        background: darken($ui-base-color, 4%);
        width: 280px;
        padding: 15px 20px;
        border-radius: 4px 4px 0 0;
        line-height: initial;
        position: relative;
        z-index: 4;

        .actions {
          margin-bottom: 0;

          button,
          .button,
          .block-button {
            margin-bottom: 0;
          }
        }
      }

      .heading {
        position: relative;
        z-index: 4;
        padding-bottom: 150px;
      }

      .closed-registrations-message {
        min-height: 330px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
      }
    }

    ul {
      list-style: none;
      margin: 0;

      li {
        display: inline-block;
        vertical-align: bottom;
        margin: 0;

        &:first-child a {
          padding-left: 0;
        }

        &:last-child a {
          padding-right: 0;
        }
      }
    }

    .links {
      position: relative;
      z-index: 4;

      a {
        display: flex;
        justify-content: center;
        align-items: center;
        color: $ui-primary-color;
        text-decoration: none;
        padding: 12px 16px;
        line-height: 32px;
        font-family: 'mastodon-font-display', sans-serif;
        font-weight: 500;
        font-size: 14px;

        &:hover {
          color: $ui-secondary-color;
        }
      }

      .brand {
        a {
          padding-left: 0;
          color: $white;
        }

        img {
          width: 32px;
          height: 32px;
          margin-right: 10px;
        }
      }
    }
  }

  .container {
    width: 100%;
    box-sizing: border-box;
    max-width: 800px;
    margin: 0 auto;
  }

  .wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
  }

  .learn-more-cta {
    background: darken($ui-base-color, 4%);
    padding: 50px 0;
  }

  h3 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 16px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $ui-primary-color;
  }

  p {
    font-size: 16px;
    line-height: 30px;
    color: lighten($ui-base-color, 26%);
  }

  .features {
    padding: 50px 0;

    .container {
      display: flex;
    }
  }

  #mastodon-timeline {
    -webkit-overflow-scrolling: touch;
    -ms-overflow-style: -ms-autohiding-scrollbar;
    font-family: 'mastodon-font-sans-serif', sans-serif;
    font-size: 13px;
    line-height: 18px;
    font-weight: 400;
    color: $primary-text-color;
    width: 330px;
    margin-right: 30px;
    flex: 0 0 auto;
    background: $ui-base-color;
    overflow: hidden;
    box-shadow: 0 0 6px rgba($black, 0.1);

    .column {
      padding: 0;
      border-radius: 4px;
      overflow: hidden;
      height: 100%;
    }

    .scrollable {
      height: 400px;
    }

    p {
      font-size: inherit;
      line-height: inherit;
      font-weight: inherit;
      color: $primary-text-color;

      a {
        color: $ui-secondary-color;
        text-decoration: none;
      }
    }
  }

  .about-mastodon {
    max-width: 675px;

    p {
      margin-bottom: 20px;
    }

    .features-list {
      margin-top: 20px;
    }
  }

  em {
    display: inline;
    margin: 0;
    padding: 0;
    font-weight: 500;
    background: transparent;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: $ui-primary-color;
  }

  h1 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 26px;
    line-height: 30px;
    margin-bottom: 0;
    font-weight: 500;
    color: $ui-secondary-color;

    small {
      font-family: 'mastodon-font-sans-serif', sans-serif;
      display: block;
      font-size: 18px;
      font-weight: 400;
      color: lighten($ui-base-color, 26%);
    }
  }

  .footer-links {
    padding-bottom: 50px;
    text-align: right;
    color: lighten($ui-base-color, 26%);

    p {
      font-size: 14px;
    }

    a {
      color: inherit;
      text-decoration: underline;
    }
  }

  @media screen and (max-width: 800px) {
    .container {
      padding: 0 20px;
    }

    .header-wrapper .mascot {
      left: 20px;
    }
  }

  @media screen and (max-width: 689px) {
    .header-wrapper .mascot {
      display: none;
    }
  }

  @media screen and (max-width: 675px) {
    .header-wrapper {
      padding-top: 0;
    }

    .header .container,
    .features .container {
      display: block;
    }

    .links {
      padding-top: 15px;
      background: darken($ui-base-color, 4%);
    }

    .header {
      padding-top: 0;

      .hero {
        margin-top: 30px;
        padding: 0;

        .heading {
          padding-bottom: 20px;
        }
      }

      .floats {
        display: none;
      }

      .heading,
      .nav {
        text-align: center;
      }

      .heading h1 {
        padding: 30px 0;
      }

      .hero {
        .simple_form,
        .closed-registrations-message {
          background: darken($ui-base-color, 8%);
          width: 100%;
          border-radius: 0;
          box-sizing: border-box;
        }
      }
    }

    #mastodon-timeline {
      height: 70vh;
      width: 100%;
      margin-bottom: 50px;
    }
  }
}

@keyframes floating {
  from {
    transform: translate(0, 0);
  }

  65% {
    transform: translate(0, 4px);
  }

  to {
    transform: translate(0, -0);
  }
}