1.通过vue实现表现和数据分离
2.实现了二级导航栏
3.兼容pc端和移动端
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<!--禁止浏览器缓存-->
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />
<title>响应式二级导航栏</title>
<style type="text/css">
*{
box-sizing: border-box;
}
html,body,div,ul,li,a{
padding: 0;
border: 0;
margin: 0;
}
a{
text-decoration: none;
color: #000;
}
ul{
clear: both;
text-decoration: none;
white-space: nowrap;
}
li{
list-style: none;
}
.logo img{
height: 46px;
width: auto;
}
nav{
display: flex;
display: -webkit-flex; /* Safari */
flex-direction: row;
flex-wrap: wrap;
justify-content: flex-start;
align-items: center;
padding: 0 30px;
background: darkgray;
}
nav > .nav-item{
position: relative;
padding: 20px 30px 20px 0;
}
nav .nav-item a{
display: inline-block;
width: 100%;
}
nav > .nav-item > a:visited{
color: #000;
}
nav > .nav-item > a:hover,
nav > .nav-item > a:focus{
color: #fff;
}
nav > .nav-item > .dropdown{
position: absolute;
top: 50px;/*需根据需求来做调整*/
left: 0;
display: none;
border-radius: 3px;
bo