有一些元素来自数组，然后我需要将它们放置在带有 diplay flex 的列表中，我的问题是我添加了一个按钮，该按钮应该折叠所选元素，但其他元素的高度也被修改了......
尝试过不同的显示方式并在 li 元素上放置内联，但没有任何效果。
有什么方法可以使列表中的元素内联且高度独立？
.dragscroll {
display: flex;
overflow-x: auto;
}
.rectangle-holder {
border: 1px solid black;
}
ul {
list-style-type: none;
}<!DOCTYPE html>
<html>
<head>
<title></title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
</head>
<body>
<div class="container-fluid p-0">
<div class="row">
<div class="col-12">
<ul class="dragscroll">
<li class="rectangle-holder">
<div class="row">
<div class="col-12">
<p>Hello</p>
</div>
<div class="col-12">
<button class="btn btn-primary" data-target="#comment1" data-toggle="collapse" type="button">Collapse</button>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="collapse" id="comment1">
<p>Collapsable!</p>
</div>
</div>
</div>
</li>
<li class="rectangle-holder">
<div class="row">
<div class="col-12">
<p>Hello</p>
</div>
<div class="col-12">
<button class="btn btn-primary" data-target="#comment2" data-toggle="collapse" type="button">Collapse</button>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="collapse" id="comment2">
<p>Collapsable!</p>
</div>
</div>
</div>
</li>
<li class="rectangle-holder">
<div class="row">
<div class="col-12">
<p>Hello</p>
</div>
<div class="col-12">
<button class="btn btn-primary" data-target="#comment3" data-toggle="collapse" type="button">Collapse</button>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="collapse" id="comment3">
<p>Collapsable!</p>
</div>
</div>
</div>
</li>
<li class="rectangle-holder">
<div class="row">
<div class="col-12">
<p>Hello</p>
</div>
<div class="col-12">
<button class="btn btn-primary" data-target="#comment4" data-toggle="collapse" type="button">Collapse</button>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="collapse" id="comment4">
<p>Collapsable!</p>
</div>
</div>
</div>
</li>
<li class="rectangle-holder">
<div class="row">
<div class="col-12">
<p>Hello</p>
</div>
<div class="col-12">
<button class="btn btn-primary" data-target="#comment5" data-toggle="collapse" type="button">Collapse</button>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="collapse" id="comment5">
<p>Collapsable!</p>
</div>
</div>
</div>
</li>
<li class="rectangle-holder">
<div class="row">
<div class="col-12">
<p>Hello</p>
</div>
<div class="col-12">
<button class="btn btn-primary" data-target="#comment6" data-toggle="collapse" type="button">Collapse</button>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="collapse" id="comment6">
<p>Collapsable!</p>
</div>
</div>
</div>
</li>
<li class="rectangle-holder">
<div class="row">
<div class="col-12">
<p>Hello</p>
</div>
<div class="col-12">
<button class="btn btn-primary" data-target="#comment7" data-toggle="collapse" type="button">Collapse</button>
</div>
</div>
<div class="row">
<div class="col-12">
<div class="collapse" id="comment7">
<p>Collapsable!</p>
</div>
</div>
</div>
</li>
</ul>
</div>
</div>
</div>
</body>
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</html>最佳答案
您需要添加 css 属性 align-items: flex-start;。 它定义了 flex 元素如何沿当前行的交叉轴布局的默认行为。并且flex-start设置元素的cross-start margin边缘放置在cross-start线上。
.dragscroll {
display: flex;
overflow-x: auto;
align-items: flex-start;
}
关于javascript - 如何避免 flex 元素在折叠时具有相同的高度，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58556885/