Dcat-Admin/resources/assets/dcat/sass/components/_grid.scss

.grid-column-header {
  a {
    color: $dark70;
  }
  a:hover, a.active {
    color: $primary-darker;
  }
}
// 排序图标
.grid-sort {
  display: inline-block;
  margin: -2px -4px 0 3px;
  height: 15px;

  .up:before {
    font-family: "feather";
    padding-right: 0.3rem;
    font-size: 0.7rem;
    content: "\E845";
  }

  .down {
    margin: 6px 0 0 -1.17rem;
  }
  .down:after {
    font-family: "feather";
    content: "\E842";
    font-size: 0.7rem;
  }
}