.el-menu,
.el-sub-menu {
    background-color: transparent !important;
}

.el-menu-item-group {
    background-color: transparent !important;
}

.el-menu {
    width: 98%;
    height: 100%;
    border: 0;
    box-shadow: 1px 1px 5px #cccccc;
}

/* .el-aside,.el-menu-item-group,.el-submenu,.el-menu-item {
    background-image: url(../../assets/images/左边栏.png);
} */