flex 常用属性,以及flex值公式计算,请前往git地址查看 git地址
(https://gitee.com/hflxhn/summary/blob/master/web/css3/flex/file%E5%B1%9E%E6%80%A7.md)
两个常见的导航布局 (顶部导航 和 手机端的底部导航)
顶部导航
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<title>flex - header_navbar</title>
<style>
* {
margin: 0;
padding: 0;
box-shadow: border-box;
}
ul, li {
list-style: none;
}
a {
text-decoration: none;
}
.header {
width: 100%;
height: 60px;
line-height: 60px;
background: #333;
}
.navbar {
display: flex;
width: 1200px;
margin: 0 auto;
}
.navbar > a {
font-size: 1.5rem;
background: rgba(0, 0, 0, 0.1);
display: inline-block;
height: 100%;
color: #fff;
}
.navbar .navbar-nav {
display: flex;
}
.navbar .navbar-nav .nav-link {
display: inline-block;
padding: 0 0.5125rem;
color: #ccc;
}
.ml-auto {
margin-left: auto;
}
</style>
</head>
<body>
<header class="header">
<nav class="navbar">
<a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >hflxhn</a>
<ul class="navbar-nav">
<li><a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" class="nav-link">item1</a></li>
<li><a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" class="nav-link">item2</a></li>
<li><a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" class="nav-link">item3</a></li>
</ul>
<ul class="navbar-nav ml-auto">
<li><a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" class="nav-link">退出</a></li>
</ul>
</nav>
</header>
</body>
</html>
底部导航
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<title>flex - footer_navbar</title>
<style>
* {
margin: 0;
padding: 0;
box-shadow: border-box;
}
li {
list-style: none;
}
.footer-navbar {
width: 100%;
height: 60px;
line-height: 60px;
background: #ccc;
position: fixed;
left: 0;
bottom: 0;
}
.navbar {
display: flex;
}
.navbar .nav-item {
flex: 1;
text-align: center;
}
.navbar .nav-item .nav-link {
display: inline-block;
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<div class="footer-navbar">
<div class="navbar">
<li class="nav-item">
<a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" class="nav-link">item1</a>
</li>
<li class="nav-item">
<a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" class="nav-link">item2</a>
</li>
<li class="nav-item">
<a href="" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" class="nav-link">item3</a>
</li>
</div>
</div>
</body>
</html>
