CSS滑动门与粘性定位
滑动门
大家在网页中经常会见到这样一种导航效果,因为使用频率广泛,所以广大的程序员给它起了一个名字,叫做滑动门.在学习滑动门之前,首先你要了解什么是滑动门
具体实现
<div class="slide">
<ul>
<li>
<a href="#">手机</a>
<span class="iconfont icon-jiantou_liebiaoxiangyou"></span>
<div class="slide-list">小米1</div>
</li>
<li>
<a href="#">电视</a>
<span class="iconfont icon-jiantou_liebiaoxiangyou"></span>
<div class="slide-list">小米2</div>
</li>
</ul>
</div>*{
margin: 0;
padding: 0;
}
.slide {
width: 234px;
height: 420px;
background-color: rgba(105, 101, 101, .6);
padding: 20px 0;
position: relative;
margin: 100px;
}
.slide ul{
list-style: none;
}
.slide ul li{
width: 100%;
height: 42px;
line-height: 42px;
text-align: left;
padding-left: 30px;
box-sizing: border-box;
}
.slide ul li:hover{
background:#ff6700;
}
.slide ul li a{
display: inline-block;
text-decoration: none;
color: #fff;
}
.slide-list {
width: 992px;
height: 460px;
background-color: #fff;
border: 1px solid #e0e0e0;
border-left: none;
box-shadow: 0 8px 16px rgba(0, 0, 0, .18);
box-sizing: border-box;
position: absolute;
top: 0;
left: 234px;
display: none;
}
.slide li:hover>.slide-list {
display: block;
}
.iconfont{
display: inline-block;
font-size: 24px;
color: #fff;
position: absolute;
right: 10px;
}粘性定位
具体实现
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
.ad {
width: 100%;
background-color: #ff6524;
}
.ad img{
display: block;
width: 1190px;
height: 100px;
margin: 0 auto;
}
.wrap{
width: 80%;
margin: 0 auto;
}
.head {
width: 100%;
height: 50px;
line-height: 50px;
position: sticky;
top: 0px;
}
.head ul {
list-style: none;
}
.head ul li {
float: left;
padding: 0 10px;
}
h3 {
height: 300px;
}
</style>
</head>
<body>
<div class="container">
<div class="ad">
<img src="./ad.png" alt="">
</div>
<div class="wrap">
<div class="head">
<ul>
<li>导航1</li>
<li>导航2</li>
<li>导航3</li>
<li>导航4</li>
</ul>
</div>
<div class="body">
<h3>标题1</h3>
<h3>标题2</h3>
<h3>标题3</h3>
<h3>标题4</h3>
<h3>标题5</h3>
<h3>标题6</h3>
<h3>标题7</h3>
</div>
</div>
</div>
</body>
</html>
粘性定位为什么不生效？
- 父元素不能overflow:hidden或者overflow:auto属性
- 必须指定top、bottom、left、right4个值之一，否则只会处于相对定位
- 父元素的高度不能低于
sticky的高度 - sticky元素仅在其父元素内生效
原文地址：https://blog.csdn.net/2301_80241120/article/details/144351758
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