我尝试制作悬停效果。当用户徘徊一个div时,它会进入绝对位置并改变它的高度。这是代码:
@import 'https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css';
.child {
position: relative;
z-index: 2;
width: 100%;
min-height: 48px;
}
.child:hover {
position: absolute;
z-index: 3;
border: 1px solid #c0c0c0;
}
.child .sub-child { display: none; }
.child:hover .sub-child { display: block; }

<div class="container">
<div class="row">
<div class="col-xs-4 col-md-4">
<div class="child">
First
<ul class="sub-child">
<li>First</li>
<li>Second</li>
</ul>
</div>
</div>
<div class="col-xs-4 col-md-4">
<div class="child">Second</div>
</div>
<div class="col-xs-4 col-md-4">
<div class="child">
Third
<ul class="sub-child">
<li>First</li>
<li>Second</li>
<li>Third</li>
<li>Fourth</li>
<li>Fifth</li>
</ul>
</div>
</div>
<div class="col-xs-4 col-md-4">
<div class="child">Fourth</div>
</div>
</div>
<div class="row">
<div class="col-xs-12">Some text here</div>
</div>
</div>
&#13;
问题在于,当悬停转到行中的最后一个元素或列表中的最后一个元素时,内容会重叠。我该如何解决这个问题?
答案 0 :(得分:0)
我不确定你是否采取了正确的方法,但我做了一些调整,包括在第一行添加父div以增加一些余量,以便它们不重叠:
http://codepen.io/anon/pen/QbVewL
@import 'https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css';
.menu{
margin-bottom: 20px;
}
.child {
position: relative;
z-index: 2;
width: 100%;
height: 48px;
border: 1px solid transparent;
box-sizing: border-box;
}
.child:hover {
position: absolute;
z-index: 3;
border: 1px solid #c0c0c0;
height: 62px;
background-color: #fff;
}