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

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

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

.list-controls {
  .nav {
    float: left;
    margin-bottom: 18px;
  }

  .btn {
    float: right;
    margin-left: 8px;
    margin-bottom: 10px;
    font-size: 1.143em;
    font-weight: normal;
  }

  .search .btn {
    float: none;
  }

  a.badge-category, .dropdown-header {
    padding: 3px 12px;
    font-size: 1.143em;
  }

}

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

.topic-list-icons {
  .d-icon-thumb-tack { color: dark-light-choose($primary-medium, $secondary-medium); }
  .d-icon-thumb-tack.unpinned { color: dark-light-choose($primary-medium, $secondary-medium); }
  a.title {color: $primary;}
  .d-icon-bookmark { color: dark-light-choose($primary-medium, $secondary-medium); }
}

.topic-list {
  @extend .topic-list-icons;

  margin: 0 0 10px;
  th,
  td {
    padding: 12px 5px;
    &:first-of-type {
      padding-left: 10px;
    }
    &:last-of-type {
      padding-right: 10px;
    }
  }
  th {
    button .d-icon {color: dark-light-choose($primary-medium, $secondary-medium); }
  }

  > tbody > tr {
    &.highlighted {
      animation: background-fade-highlight 2.5s ease-out;
    }
  }
  button.bulk-select {
    padding: 0;
    margin-right: 0.3em;
  }

  .star {
    width: 20px;
    padding-right: 0;
    .d-icon-star {
      position: relative;
    }
    + .main-link {
      padding-left: 5px;
    }
  }

  .badge-notification {
    position: relative;
    top: -2px;
    &.new-topic {
      top: -1px;
      padding-left: 5px;
    }
  }

  .posters {
    // we know there are up to 5 avatars of fixed size
    // will be overridden by media width queries on narrow displays to 1 avatar's width
    width: 146px;
    min-width: 146px;
  }
  .posters {
    > a {
      float: left;
      margin-right: 4px;
      &:last-of-type {
        margin-right: 0;
      }
    }
  }

  .posters a:first-child .avatar.latest:not(.single) {
     box-shadow: 0 0 3px 1px desaturate($tertiary-medium, 35%);
     border: 2px solid desaturate($tertiary-medium, 40%);
     position: relative;
     top: -2px;
     left: -2px;
  }


  .sortable {
    cursor: pointer;
    &:hover {
      background-color: $primary-low;
    }
    @include unselectable;
  }
  .likes {
    width: 65px;
  }
  .views {
    width: 65px;
  }
  .posts {
    width: 65px;
  }

  .post-actions {
    clear: both;
    width: auto;
    color: dark-light-choose($primary-medium, $secondary-medium);
    text-align: left;
    font-size: .857em;
    margin-top: 5px;
    .fa {
      margin-right: 2px;
    }
    a {
      color: dark-light-choose($primary-medium, $secondary-medium);
      margin-right: 3px;
      line-height: 20px;
    }
  }
  .activity {
    width: 60px;
    &:lang(zh_CN) {
      width: 80px;
    }
    span {
      cursor: pointer;
    }
  }
  .age {
    width: 60px;
  }
  .with-year {
    white-space: nowrap;
  }
}

.topic-list tbody tr.has-excerpt .star {
  vertical-align: top;
  margin-top: 3px;
}

.topic-list.categories {
  a.title {
    color: $tertiary;
  }

  th.posts {
    position: relative;
  }
  th.stats {
    width: 90px;
  }
  td.latest {
    vertical-align: top;
    padding: 0 8px 8px;
  }
  .last-user-info {
    font-size: 0.857em;
  }
  .has-description {
    td.category {
      padding-top: 15px;
    }
  }
  .category{
    h3 {
      display: inline-block;
      font-size: 1.286em;
      i {
        margin-right: 5px;
      }
      a[href] {
        color: $primary;
      }
    }
    .subcategories {
      margin-top: 10px;
    }
    .category-description {
      margin-top: 10px;
    }
    .clear-badge {
      color: $primary;
    }
  }

  .featured-topic {
    margin: 10px 0 0;
    /* topic status glyphs */
    i {
      color: dark-light-choose($primary-medium, $secondary-medium) !important;
      font-size: 0.929em;
    }
    a.last-posted-at, a.last-posted-at:visited {
      color: dark-light-choose($primary-medium, $secondary-medium);
      font-size: 0.857em;
    }
    .badge {
      font-size: 0.857em;
      top: -1px;
    }
  }
}

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

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

#list-area .top-lists h2 {
  cursor: pointer;
  margin: 5px 0 10px;
}

#list-area {
  h2 {
    margin: 20px 0 10px;
  }
  .show-more.has-topics {
    top: 0;
    .alert {
      padding: 12px 35px 12px 14px;
    }
  }
}

.category-dropdown-menu {
  max-height: 350px;
  min-width: 131px;
}

#bulk-select {
  position: fixed;
  right: 20px;
  top: 130px;
  padding: 5px;
  background-color: $secondary;
  z-index: 99999;
}

button.dismiss-read {
  float: right;
  margin-bottom: 5px;
  margin-left: 10px;
}

.tags-admin-menu {
  .dropdown-menu {
    right: 0;
    top: 30px;
    bottom: auto;
    left: auto;
  }
}

.category-heading {
  clear: both;
  p {
    line-height: 1.5em;
    font-size: 1.429em;
  }
}

.category-navigation {
  clear: both;
}

.category-logo {
  max-height: 150px;
  float: left;
  margin-bottom: 15px;
  margin-right: 15px;
}

/* Tablet (portrait) ----------- */

@media all
and (max-width : 850px) {

  // slightly smaller font, tighten spacing on nav pills
  .nav-pills {
    > li > a {
      font-size: 1em;
      padding: 5px 10px;
      }
  }

  // new topic just a "+" no text
  button#create-topic {
    span {
      display: none;
    }
    i {
      margin-right: 0;
    }
  }

  .topic-list {

    // tighter table header spacing
   th:first-of-type {
     padding: 12px 5px;
     }
   // smaller table cell font and cell spacing
   th, td {
      padding: 12px 2px;
      font-size: 1em;
     }
    .main-link {
      font-size: 1em;
      }
    .category {
      min-width: 0;
      padding: 0;
      }
    // suppress views column
    th.views {
      display: none;
    }
    td.views {
      display: none;
    }
    // show only the first poster
    .posters {
       min-width: 0;
       width: 50px;
       a:not(.latest) {
         display: none;
         }
       a.latest {
         padding: 0 8px;
         }
    }
  }
}