discourse/app/assets/stylesheets/mobile/topic-list.scss

// --------------------------------------------------
// Topic lists
// --------------------------------------------------

// List controls
// --------------------------------------------------

.list-controls {
  margin: 5px;
  .nav {
    float: left;
    margin-right: 15px;
    li {
      margin-top: 5px;
    }
  }
  .btn {
    float: right;
    margin-left: 8px;
  }
}

.list-container .full-width {
  margin-left: 0;
}

// Base list
// --------------------------------------------------

.topic-list {

  > tbody > tr {
    &:nth-child(odd) {
      background-color: darken($secondary, 3%);
      }
    &:nth-child(even) {
      background-color: $secondary;
      }
    &.highlighted {
      background-color: scale-color($tertiary, $lightness: 85%);
    }
    }

  th,
  td {
    padding: 7px 5px;
    color: scale-color($primary, $lightness: 50%);
  }

  a.title {color: $primary;}
  a.title:visited:not(.badge-notification) {color: scale-color($primary, $lightness: 35%);}

  .badge-notification {
    position: relative;
    padding: 4px 4px 4px 3px;
    top: -1px;
      i {color: $secondary;}
  }

  .topic-item-stats {
    margin-top: 8px;
  }

  .topic-item-stats {
    .category, .num, .last-poster {
      float: left;
      margin-right: 14px;
    }
    .num .fa {
      color: scale-color($primary, $lightness: 50%);
    }
  }

  .num.posts {
    font-weight: bold;
  }

  .age {
    white-space: nowrap;
    margin-left: 5px;
  }
}

// Category list
// --------------------------------------------------

tr.category-topic-link:nth-of-type(odd) {
    background-color: darken($secondary, 3%) !important;
    }

.topic-list.categories {
  td.latest {
    vertical-align: top;
    padding: 5px;
  }

  .badge-category {
    display: inline-block;
    margin-top: 1px;
  }
  .category-description {
    margin-top: 8px;
  }
  .featured-users {
    @include mobile-portrait  {
      margin-bottom: 10px;
      padding-top: 8px;
      clear: left;
    }
    @include not-mobile-portrait  {
      float: right;
    }
  }
  .latest {
    @include mobile-portrait { width: 150px; }
    @include mobile-landscape { width: 270px; }
    @include tablet-landscape { width: 450px; }
    .featured-topic {
      margin: 8px 0;
      a.last-posted-at, a.last-posted-at:visited {
        color: scale-color($primary, $lightness: 50%);
      }
    }
  }
  .stats {
    @include not-tablet-landscape { display: none; }
    @include tablet-landscape { min-width: 80px; }
  }
}

.category-list-item {

  .topic-list > tbody > tr {
    &:nth-child(odd) {
      background-color: $secondary;
      }
      &:nth-child(even) {
        background-color: $secondary;
      }
    }

  margin-bottom: 10px;

  th .badge-category {
    float: left;
    margin: 1px 4px 0 0;
    font-size: 110%;
  }


  .posters {
    float: left;
  }
  > footer {
    border-top: 0;
    padding: 7px 10px;
    figure {
      float: left;
      margin: 3px 7px 0 0;
      color: scale-color($primary, $lightness: 10%);
      font-weight: bold;
      font-size: 12px;
    }
    figcaption {
      display: inline;
      font-weight: normal;
    }
    .btn {
      float: right;
      margin-left: 7px;
    }
  }
}


.topic-list-bottom {
  margin: 20px 12px 0 12px;
}


// Misc. stuff
// --------------------------------------------------

.list-controls {
  .category-dropdown-button {
    padding: 4px 10px 4px 8px;
  }
}

.btn-group .dropdown-toggle:active,
.btn-group.open .dropdown-toggle {
  outline: 0;
}

.dropdown {
  position: relative;
}
.dropdown-toggle:active,
.open .dropdown-toggle {
  outline: 0;
}
.caret {
  display: inline-block;
  width: 0;
  height: 0;
  vertical-align: middle;
  border-top: 4px solid $primary;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
  content: "";
  margin-left: 5px;
}
.dropdown-menu {
  position: relative;
  top: 100%;
  left: 0;
  z-index: 1000;
  display: none;
  float: left;
  width: 280px;
  padding: 4px 0;
  margin: 1px 0 0;
  list-style: none;
  background-color: $secondary;
  border: 1px solid scale-color-diff();
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 5px;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
  background-clip: padding-box;
  margin-bottom: 20px;
.title {font-weight: bold; display: block;}

}
.dropdown-menu a {
  display: block;
  padding: 3px 15px;
  clear: both;
  font-weight: normal;
  line-height: 18px;
  color: $primary;
}
.dropdown-menu li > a:hover,
.dropdown-menu .active > a,
.dropdown-menu .active > a:hover {
  color: $tertiary;
  text-decoration: none;
  background-color: scale-color($tertiary, $lightness: 75%);
}
.open > .dropdown-menu {
  display: block;
  clear: both;
}
.fade {
  opacity: 0;
  -webkit-transition: opacity 0.15s linear;
  transition: opacity 0.15s linear;
}
.fade.in {
  opacity: 1;
}

ol.category-breadcrumb {

  margin: 5px 10px 0 0;

}

.category-dropdown-menu {
  height: 200px;
  margin-top: 31px;

  a.badge-category {
    line-height: 26px !important;
    margin-bottom: 0 !important;
  }

  div {
    margin-bottom: 10px;
  }
}

.top-lists {
  h2 { margin-left: 10px; }
  .topic-list { padding-bottom: 10px; }
  .btn-default.pull-right { margin-right: 10px; }
}

.category-notification-menu {
  display: none;
}

.topic-list-bottom h3 {
  clear:both;
  padding-top:10px;
}

.category-logo {
  display: block;
  max-width: 100%;
  padding: 8px 0;
}

.period-chooser {
  button {
    margin-top: 10px;
  }
}