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

.commit-box {
  @extend .main_box;

  .commit-head { 
    @extend .top_box_content;

    .commit-title {
      line-height: 26px;
      margin:0;
    }

    .commit-description {
      font-size: 14px;
      border: none;
      background-color: white;
      padding-top:10px;
    }

    .browse-button {
      @extend .btn;
      @extend .btn-small;
      float: right;
    }
  }

  .commit-info {
    @extend .middle_box_content;
    @extend .clearfix;

    .sha-block {
      text-align:right;
      &:first-child { 
        padding-bottom:6px;
      }

      a { 
        border-bottom: 1px solid #aaa;
        margin-left: 9px;
      }
    }

    &.merge-commit .sha-block {
      clear: right;
    }

    .committer {
      padding-left: 32px;
    }

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