通常手機版的子選單，會自動在點選Menu圖示時，自動展開，有時候子選單數量太多的話，還會造成閱讀上的困難，今天這篇文章要教你如何在Divi的手機版選單加上＋號，將所有的子選單收合起來，讓視覺上看起來更加整潔乾淨。

---

步驟教學

1.增加CSS程式碼

首先，點選左方功能列的Divi → General → 將下方的程式碼全部選起複製，並貼上到Custom CSS欄位中。

/*Proper Collapsable Mobile Menu*/

/*Style the icon's placeholder*/
ul.et_mobile_menu li.menu-item-has-children .mobile-toggle,
ul.et_mobile_menu li.page_item_has_children .mobile-toggle,
.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children .mobile-toggle,
.et-db #et-boc .et-l ul.et_mobile_menu li.page_item_has_children .mobile-toggle {
	width: 44px;
	height: 100%;
	padding: 0px !important;
	max-height: 44px;
	position: absolute;
	right: 0px;
	top: 0px;
	z-index: 999;
	background-color: transparent;
	border-bottom: 0;
	text-align: center;
}
ul.et_mobile_menu > li.menu-item-has-children,
ul.et_mobile_menu > li.page_item_has_children,
ul.et_mobile_menu > li.menu-item-has-children .sub-menu li.menu-item-has-children,
.et-db #et-boc .et-l ul.et_mobile_menu > li.menu-item-has-children,
.et-db #et-boc .et-l ul.et_mobile_menu > li.page_item_has_children,
.et-db #et-boc .et-l ul.et_mobile_menu > li.menu-item-has-children .sub-menu li.menu-item-has-children {
	position: relative;
}
.et_mobile_menu .menu-item-has-children > a,
.et-db #et-boc .et-l .et_mobile_menu .menu-item-has-children > a {
	background-color: transparent;
}

/*Hide the Sub-menu*/
ul.et_mobile_menu .menu-item-has-children .sub-menu,
#main-header ul.et_mobile_menu .menu-item-has-children .sub-menu,
.et-db #et-boc .et-l ul.et_mobile_menu .menu-item-has-children .sub-menu,
.et-db #main-header ul.et_mobile_menu .menu-item-has-children .sub-menu {
	display: none !important;
	visibility: hidden !important;
}

/*Show the sub-menu when the + icon is clicked*/
ul.et_mobile_menu .menu-item-has-children .sub-menu.visible,
#main-header ul.et_mobile_menu .menu-item-has-children .sub-menu.visible,
.et-db #et-boc .et-l ul.et_mobile_menu .menu-item-has-children .sub-menu.visible,
.et-db #main-header ul.et_mobile_menu .menu-item-has-children .sub-menu.visible {
	display: block !important;
	visibility: visible !important;
}

/*Create the opening/closing icon using the Divi's Icons*/
ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after,
.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after {
	top: 10px;
	position: relative;
	font-family: "ETModules";
}

/*Set the opening icon for custom Tax Pages*/
body.single-product:not(.et-tb-has-template) ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after,
body.tax-product_cat ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after,
body.tax-project_category ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after,
body.single-product.et-db:not(.et-tb-has-template) #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after,
body.tax-product_cat.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after,
body.tax-project_category.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after {
	content: "+";
}

/*Set the opening icon for default WordPress Pages*/
ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after,
.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children .mobile-toggle::after {
	content: "\4c";
}

/*Set the closing icon*/
ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after,
.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after,
body.single-product:not(.et-tb-has-template) ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after,
body.single-product.et-db:not(.et-tb-has-template) #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after,
body.tax-product_cat ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after,
body.tax-product_cat.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after,
body.tax-project_category ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after,
body.tax-project_category.et-db #et-boc .et-l ul.et_mobile_menu li.menu-item-has-children.dt-open > .mobile-toggle::after {
	content: '\4d';
}

---

2. 增加JS程式碼

接著，點選Integration，將下方的程式碼全選複製貼上到「Add code to the <head> of your blog」之中，最後點選下方的儲存，就完成囉！

<script id="dt-collapsable-menu-items">
jQuery(function ($) {
	$(document).ready(function () {
		$("body ul.et_mobile_menu li.menu-item-has-children, body ul.et_mobile_menu  li.page_item_has_children").append('<a href="#" class="mobile-toggle"></a>');
		$('ul.et_mobile_menu li.menu-item-has-children .mobile-toggle, ul.et_mobile_menu li.page_item_has_children .mobile-toggle').click(function (event) {
			event.preventDefault();
			$(this).parent('li').toggleClass('dt-open');
			$(this).parent('li').find('ul.children').first().toggleClass('visible');
			$(this).parent('li').find('ul.sub-menu').first().toggleClass('visible');
		});
		iconFINAL = 'P';
		$('body ul.et_mobile_menu li.menu-item-has-children, body ul.et_mobile_menu li.page_item_has_children').attr('data-icon', iconFINAL);
		$('.mobile-toggle').on('mouseover', function () {
			$(this).parent().addClass('is-hover');
		}).on('mouseout', function () {
			$(this).parent().removeClass('is-hover');
		})
	});
});
</script>

---

如果你對於這篇文章有任何疑問或者建議，都歡迎你在底下留言給我喔：）