.teacher .el-submenu{position:relative}.teacher .el-submenu .el-menu--horizontal{position:absolute!important;top:64px!important;left:-110px!important}.teacher .el-submenu .el-menu--horizontal .el-menu--popup{height:136px;background-color:#fff;border-radius:0 0 8px 8px;box-shadow:0 3px 10px rgba(0,0,0,.1);padding:24px;margin:0;box-sizing:border-box}.teacher .el-submenu .el-menu--horizontal .el-menu--popup h4{margin:0 0 22px;color:#27272a;font-size:15px;font-weight:400}.teacher .el-submenu .el-menu--horizontal .el-menu--popup .el-menu-item{background:rgba(134,101,241,.09);width:124px;height:44px;border-radius:6px;min-width:124px;display:flex;align-items:center;justify-content:center}.teacher .el-submenu .el-menu--horizontal .el-menu--popup .el-menu-item i{color:#8665f1;font-size:18px;margin-right:4px}.teacher .el-submenu .el-menu--horizontal .el-menu--popup .el-menu-item span{color:#8665f1;font-size:14px}.teacher .el-submenu .el-menu--horizontal .el-menu--popup .el-menu-item:first-child{margin-right:24px}.teacher .el-submenu .el-menu--horizontal .el-menu--popup .el-menu-item.is-active{background-color:#8665f1}.teacher .el-submenu .el-menu--horizontal .el-menu--popup .el-menu-item.is-active i,.teacher .el-submenu .el-menu--horizontal .el-menu--popup .el-menu-item.is-active span{color:#fff}.show_preview{margin-left:50px}