flexbox布局实践1
1、子元素等分
这种布局常用于底部的导航或者tab等分
ul{
display:flex;
}
li{
flex:1;
}
完整代码:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>test1</title>
<style>
body{
margin:0
}
ul{
display:flex;
padding:0;
}
li{
flex:1;
background:red;
margin:0;
list-style:none;
height:20px;
}
</style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</body>
</html>
2、左右固定宽度，中间自适应
这种布局常用于左右各有图标的列表
ul{
display:flex;
}
li:first-child,
li:last-child{
width:50px;
}
li:nth-child(2){
flex:1;
}
完整代码:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>test2</title>
<style>
body{
margin:0
}
ul{
display:flex;
padding:0;
}
li{
background:red;
margin:0;
list-style:none;
height:20px;
}
li:first-child,
li:last-child{
width:50px;
}
li:nth-child(2){
flex:1;
}
</style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</body>
</html>
3、顶部贴顶，底部贴底
html,body,ul{
height:100%;
}
ul{
display:flex;
flex-direction:column;
}
li:first-child,
li:last-child{
height:50px;
}
li:nth-child(2){
flex:1;
}
完整代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>test3</title>
<style>
html,body,ul{
height:100%;
}
body{
margin:0
}
ul{
display:flex;
flex-direction:column;
padding:0;
margin:0;
}
li{
background:red;
margin:0;
list-style:none;
height:20px;
}
li:first-child,
li:last-child{
height:50px;
}
li:nth-child(2){
flex:1;
}
</style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</body>
</html>
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