KnowStreaming/kafka-manager-console/src/container/left-menu/index.less

.left-menu {
  width: 64px;
  background: rgba(25, 24, 24, 1);
  box-shadow: 0px 2px 4px 0px rgba(0, 0, 0, 0.1);
  position: relative;
  transition: all 150ms ease-in-out;
  &.k-open {
    width: 170px;
    .k-float-op {
      width: 156px;
    }
  }
  .k-float-op {
    color: #878380;
    position: absolute;
    left: 0px;
    bottom: 0;
    width: 64px;
    height: 28px;
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: all 150ms ease-in-out;
    z-index: 10;
    i {
      vertical-align: -6px;
    }
  }
  ul {
    margin-top: 40px;

    li {
      padding-left: 20px;
      margin-bottom: 20px;
      line-height: 24px;
      width: 160px;

      a {
        display: inline-block;
        font-size: 0;
        i,
        span {
          display: inline-block;
          vertical-align: middle;
        }

        i {
          font-size: 24px;
        }

        span {
          position: absolute;
          padding-left: 16px;
          font-size: 14px;
        }
        &.active {
          i,
          span {
            color: @primary-color;
          }
        }
      }

      &:not(.active) {
        i,
        span {
          color: #878380;
        }
      }
      &:hover {
        i,
        span {
          color: @primary-color;
        }
      }
    }
    
    .approval{
      width: 130px;
    }
  }
}