framework/less/forum/Scrubber.less

.Scrubber {
  & a {
    margin-left: -1px;
    color: @muted-color;
    
    & .fa {
      font-size: 14px;
      margin-right: 2px;
    }
    &:hover, &:focus {
      text-decoration: none;
      color: @link-color;
    }
  }
}
.Scrubber-scrollbar {
  margin: 8px 0 8px 3px;
  height: 300px;
  min-height: 50px; // JavaScript sets a max-height
  position: relative;
}
.Scrubber-before, .Scrubber-after {
  border-left: 1px solid @control-bg;
}
.Scrubber-unread {
  position: absolute;
  border-left: 1px solid lighten(@muted-color, 10%);
  width: 100%;
  background-image: linear-gradient(to right, @control-bg, fade(@control-bg, 0) 10px, fade(@control-bg, 0));
  display: flex;
  align-items: center;
  color: @muted-color;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: bold;
  padding-left: 13px;
  overflow: hidden;
}
.Scrubber-handle {
  position: relative;
  z-index: 1;
  background: @body-bg;
  width: 100%;
  padding: 5px 0;
}
.Scrubber-bar {
  height: 100%;
  width: 5px;
  background: @primary-color;
  border-radius: 4px;
  float: left;
  margin-left: -2px;
  transition: background 0.2s;

  .disabled & {
    background: @control-bg;
  }
}
.Scrubber-info {
  margin-top: -1.5em;
  position: absolute;
  top: 50%;
  width: 100%;
  left: 15px;

  & strong {
    display: block;
  }
}
.Scrubber-description {
  color: @muted-color;
}

@media @phone {
  .PostStreamScrubber {
    .Dropdown-toggle {
      font-size: 14px;
    }
    .Dropdown-menu {
      padding: 30px;
      font-size: 13px;
    }
  }
  .Scrubber-scrollbar {
    height: 40vh !important;
    max-height: none !important;
  }
}

@media @tablet-up {
  .PostStreamScrubber {
    margin: 30px 0 0 0;

    .Dropdown--expanded();
  }
}