discourse/app/assets/stylesheets/common/base/compose.scss

.autocomplete {
  z-index: 999999;
  position: absolute;
  width: 240px;
  background-color: $secondary;
  border: 1px solid scale-color-diff();
  ul {
    list-style: none;
    padding: 0;
    margin: 0;
    li {
      border-bottom: 1px solid scale-color-diff();
      a[href] {
        padding: 5px;
        display: block;
        span.username {
          color: darken($primary, 40%);
          display: inline-block;
        }
        span.name {
          font-size: 11px;
          display: inline-block;
          width: 90px;
          white-space: nowrap;
          overflow: hidden;
          text-overflow: ellipsis;
          vertical-align: middle;
        }
        &.selected {
          background-color: dark-light-diff($tertiary, $secondary, 90%, -60%);
        }
        @include hover {
          background-color: dark-light-diff($highlight, $secondary, 90%, -80%);
          text-decoration: none;
        }
      }
    }
  }
}

div.ac-wrap.disabled {
  input {
    display:none;
  }
  .item a {
    display:none;
  }
}


div.ac-wrap {
  background-color: $secondary;
  border: 1px solid scale-color-diff();
  padding: 5px 4px 1px 4px;
  div.item {
    float: left;
    margin-bottom: 4px;
    margin-right: 10px;
    span {
      height: 24px;
      display: inline-block;
      line-height: 20px;
    }
    a.remove {
      margin-left: 4px;
      font-size: 11px;
      line-height: 10px;
      padding: 1.5px 1.5px 1.5px 2.5px;
      border-radius: 12px;
      width: 10px;
      display: inline-block;
      border: 1px solid scale-color-diff();
      &:hover {
        background-color: scale-color($danger, $lightness: 75%);
        border: 1px solid scale-color($danger, $lightness: 30%);
        text-decoration: none;
        color: $danger;
      }
    }
  }
  input[type="text"] {
    float: left;
    margin-bottom: 4px;
    height: 24px;
    display: block;
    border: 0;
    padding: 0;
    box-shadow: none;
  }
}

#reply-control.topic #wmd-quote-post {
  display: none;
}

.auto-close-fields {
  div:not(:first-child) {
    margin-top: 10px;
  }
  label {
    font-size: 14px;
  }
  input {
    text-align: center;
    width: 150px;
  }
  .examples {
    color: lighten($primary, 40%);
  }
}

.edit-auto-close-modal {
  .btn.pull-right {
    margin-right: 10px;
  }
  form {
    margin: 0;
  }
  .auto-close-fields {
    i.fa-clock-o {
      font-size: 16px;
      line-height: 8px;
    }
    input {
      margin: 0;
    }
  }
}

.edit-category-modal {
  .auto-close-fields {
    input[type=text] {
      width: 50px;
    }
  }
}

#reply-control {
  .spinner {
    position: absolute;
    @include fades-in(0.25s);
    left: 45%;
    top: 20%;
  }
  &.loading {
    .spinner {
      z-index: 1000;
      @include visible;
    }
  }

}