element ui --- menu样式修改

// 浮动选中
    // 浮动
    /deep/.el-submenu__title:hover {
        background: rgba(3,17,26,0.5) !important;
    }
    /deep/.el-menu-item:hover {
        outline: 0;
        background-color: rgba(3,17,26,0.5) !important;
    }
    // 选中
    /deep/.is-active {
         background: #f00 !important;
    }