gitlabhq/app/assets/stylesheets/sections/notes.scss

/**
 * Notes
 */

@-webkit-keyframes targe3-note {
  from { background:#fffff0; }
  50% { background:#ffffd3; }
  to { background:#fffff0; }
}

ul.notes {
  display: block;
  list-style: none;
  margin: 0px;
  padding: 0px;

  .discussion-header,
  .note-header {
    @extend .cgray;
    padding-bottom: 15px;

    a:hover {
      text-decoration: none;
    }

    .avatar {
      float: left;
      margin-right: 10px;
    }

    .discussion-last-update,
    .note-last-update {
      &:before {
        content: "\00b7";
      }
      font-size: 13px;
    }
    .author {
      color: #333;
      font-weight: bold;
      font-size: 14px;
      &:hover {
        color: $link_color;
      }
    }
    .author-username {
      font-size: 14px;
    }
  }

  .discussion {
    overflow: hidden;
    display: block;
    position:relative;
  }

  .note {
    display: block;
    position:relative;
    .attachment {
      font-size: 14px;
    }
    .note-body {
      overflow: auto;
      .note-text {
        overflow: auto;
        word-wrap: break-word;
        @include md-typography;
      }
    }
    .note-header {
      padding-bottom: 3px;
    }

    &:last-child {
      border-bottom: none;
    }
  }
}

.diff-file .notes_holder {
  font-size: 13px;
  line-height: 18px;
  font-family: $regular_font;

  td {
    border: 1px solid #ddd;
    border-left: none;

    &.notes_line {
      text-align: center;
      padding: 10px 0;
      background: #FFF;
    }
    &.notes_line2 {
      text-align: center;
      padding: 10px 0;
      border-left: 1px solid #ddd !important;
    }
    &.notes_content {
      background-color: #fff;
      border-width: 1px 0;
      padding-top: 0;
      vertical-align: top;
      &.parallel{
        border-width: 1px;
      }
    }
  }
}

/**
 * Actions for Discussions/Notes
 */

.discussion,
.note {
  &.note:hover {
    .note-actions { display: block; }
  }
  .discussion-header:hover {
    .discussion-actions { display: block; }
  }

  .discussion-actions,
  .note-actions {
    display: none;
    float: right;

    [class~="fa"] {
      font-size: 16px;
      line-height: 16px;
      vertical-align: middle;
    }

    a {
      @extend .cgray;

      &:hover {
        color: $link_hover_color;
        &.danger { @extend .cred; }
      }
    }
  }
}
.diff-file .note .note-actions {
  right: 0;
  top: 0;
}


/**
 * Line note button on the side of diffs
 */

.diff-file tr.line_holder {
  @mixin show-add-diff-note {
    filter: alpha(opacity=100);
    opacity: 1.0;
  }

  .add-diff-note {
    margin-top: -4px;
    @include border-radius(40px);
    background: #FFF;
    padding: 4px;
    font-size: 16px;
    color: $link_color;
    margin-left: -60px;
    position: absolute;
    z-index: 10;

    transition: all 0.2s ease;

    // "hide" it by default
    opacity: 0.0;
    filter: alpha(opacity=0);

    &:hover {
      font-size: 24px;
      background: $bg_primary;
      color: #FFF;
      @include show-add-diff-note;
    }
  }

  // "show" the icon also if we just hover somewhere over the line
  &:hover > td {
    background: $hover !important;

    .add-diff-note {
      @include show-add-diff-note;
    }
  }
}