[英]not open second menu of accordion menu
我正在使用此手风琴菜单。
JavaScript:
var acc = document.getElementsByClassName("accordion"), i;
for (i = 0; i < acc.length; i++) {
acc[i].onclick = function(){
this.classList.toggle("active");
this.nextElementSibling.classList.toggle("show");
}
}
HTML:
<!DOCTYPE html>
<html>
<head>
<style>
button.accordion {
background-color: #eee;
color: #444;
cursor: pointer;
padding: 18px;
width: 100%;
border: none;
text-align: left;
outline: none;
font-size: 15px;
transition: 0.4s;
}
button.accordion.active, button.accordion:hover {
background-color: #ddd;
}
button.accordion:after {
content: '\02795';
font-size: 13px;
color: #777;
float: right;
margin-left: 5px;
}
button.accordion.active:after {
content: "\2796";
}
div.panel {
padding: 0 18px;
background-color: white;
max-height: 0;
overflow: hidden;
transition: 0.6s ease-in-out;
opacity: 0;
}
div.panel.show {
opacity: 1;
max-height: 500px;
}
</style>
</head>
<body>
<h2>Accordion with symbols</h2>
<p>In this example we have added a "plus" sign to each button. When the user clicks on the button, the "plus" sign is replaced with a "minus" sign.</p>
<button class="accordion">Section 3</button>
<div id="foo" class="panel">
<p>
<button class="accordion">Section 3</button>
<div id="foo" class="panel">
<p></p>
</div>
</p>
</div>
</body>
</html>
我需要使用第3节中的第二个菜单。我在此手风琴菜单中添加了另一个手风琴菜单,但它没有打开。 有什么想法吗? 我怎么解决这个问题?
在以下HTML结构中,我将P
标签替换为DIV
标签。 P
元素不能包含像DIV这样的块级元素。
参考: 如何将DIV放在P中? 和P标签
<body>
<h2>Accordion with symbols</h2>
<p>In this example we have added a "plus" sign to each button. When the user clicks on the button, the "plus" sign is replaced with a "minus" sign.</p>
<button class="accordion">Section 3</button>
<div id="foo" class="panel">
<div>
<button class="accordion">Section 3</button>
<div id="foo" class="panel">
<div>
test
</div>
</div>
</div>
</div>
</body>
click事件不适用于您的原始HTML结构,因为浏览器更改了DOM元素,并且DIV元素已从P标签内部移除(使用上述参考链接说明了原因)。 当我们检索nextElementSibling
此DOM更改导致出现问题。
如果可以解决您的问题,请接受此答案。
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