Flexbox 对齐内容
如果 flex-container 有多行（当，flex-wrap: wrap），align-content 属性定义容器内每一行的对齐方式。
用法-
align-content: flex-start | flex-end | center | space-between | space-around | stretch;
stretch-内容中的行将拉伸以填充剩余空间。
flex-start-内容中的所有行都在容器的开头打包。
flex-end-内容中的所有行都打包在容器的末尾。
center-内容中的所有行都打包在容器的中心。
space-between-额外的空间均匀分布在行之间。
space-around-额外的空间均匀分布在各行之间，每行（包括第一行和最后一行）周围的空间相等
中心
在将此值传递给属性
align-content 时，所有行都被压缩在容器的中心。
以下示例演示了将值
center 传递给
align-content 属性的结果。
<!doctype html>
<html lang = "en">
<style>
.box1{background:green;}
.box2{background:blue;}
.box3{background:red;}
.box4{background:magenta;}
.box5{background:yellow;}
.box6{background:pink;}
.box{
font-size:25px;
padding:15px;
width:43%;
}
.container{
display:flex;
height:100vh;
flex-wrap:wrap;
align-content:center;
}
</style>
<body>
<div class = "container">
<div class = "box box1">One</div>
<div class = "box box2">two</div>
<div class = "box box3">three</div>
<div class = "box box4">four</div>
<div class = "box box5">five</div>
<div class = "box box6">six</div>
</div>
</body>
</html>
flex-start
将此值传递给属性
align-content 后，所有行都被打包在容器的开头。
以下示例演示了将值
flex-start 传递给
align-content 属性的结果。
<!doctype html>
<html lang = "en">
<style>
.box1{background:green;}
.box2{background:blue;}
.box3{background:red;}
.box4{background:magenta;}
.box5{background:yellow;}
.box6{background:pink;}
.box{
font-size:25px;
padding:15px;
width:40%;
}
.container{
display:flex;
height:100vh;
flex-wrap:wrap;
align-content:flex-start;
}
</style>
<body>
<div class = "container">
<div class = "box box1">One</div>
<div class = "box box2">two</div>
<div class = "box box3">three</div>
<div class = "box box4">four</div>
<div class = "box box5">five</div>
<div class = "box box6">six</div>
</div>
</body>
</html>
flex-end
将此值传递给属性
align-content 时，所有行都被打包在容器的末尾。
以下示例演示了将值
flex-end 传递给
align-content 属性的结果。
<!doctype html>
<html lang = "en">
<style>
.box1{background:green;}
.box2{background:blue;}
.box3{background:red;}
.box4{background:magenta;}
.box5{background:yellow;}
.box6{background:pink;}
.box{
font-size:25px;
padding:15px;
width:40%;
}
.container{
display:flex;
height:100vh;
flex-wrap:wrap;
align-content:flex-end;
}
</style>
<body>
<div class = "container">
<div class = "box box1">One</div>
<div class = "box box2">two</div>
<div class = "box box3">three</div>
<div class = "box box4">four</div>
<div class = "box box5">five</div>
<div class = "box box6">six</div>
</div>
</body>
</html>
拉伸
将此值传递给属性
align-content 后，线条将拉伸以填充剩余空间。
以下示例演示了将值
stretch 传递给
align-content 属性的结果。
<!doctype html>
<html lang = "en">
<style>
.box1{background:green;}
.box2{background:blue;}
.box3{background:red;}
.box4{background:magenta;}
.box5{background:yellow;}
.box6{background:pink;}
.box{
font-size:25px;
padding:15px;
width:40;
}
.container{
display:flex;
height:100vh;
flex-wrap:wrap;
align-content:stretch;
}
</style>
<body>
<div class = "container">
<div class = "box box1">One</div>
<div class = "box box2">two</div>
<div class = "box box3">three</div>
<div class = "box box4">four</div>
<div class = "box box5">five</div>
<div class = "box box6">six</div>
</div>
</body>
</html>
空间
将此值传递给属性
align-content 后，额外的空间将均匀分布在各行之间，每行（包括第一行和最后一行）周围的空间相等。
以下示例演示了将值
space-around 传递给
align-content 属性的结果。
<!doctype html>
<html lang = "en">
<style>
.box1{background:green;}
.box2{background:blue;}
.box3{background:red;}
.box4{background:magenta;}
.box5{background:yellow;}
.box6{background:pink;}
.box{
font-size:25px;
padding:15px;
width:40%;
}
.container{
display:flex;
height:100vh;
flex-wrap:wrap;
align-content:space-around;
}
</style>
<body>
<div class = "container">
<div class = "box box1">One</div>
<div class = "box box2">two</div>
<div class = "box box3">three</div>
<div class = "box box4">four</div>
<div class = "box box5">five</div>
<div class = "box box6">six</div>
</div>
</body>
</html>
间距
将此值传递给属性
align-content 时，额外的空间将均匀分布在各行之间，其中第一行位于顶部，最后一行位于底部容器。
以下示例演示了将值
space-between 传递给
align-content 属性的结果。
<!doctype html>
<html lang = "en">
<style>
.box1{background:green;}
.box2{background:blue;}
.box3{background:red;}
.box4{background:magenta;}
.box5{background:yellow;}
.box6{background:pink;}
.box{
font-size:25px;
padding:15px;
width:40%;
}
.container{
display:flex;
height:100vh;
flex-wrap:wrap;
align-content:space-between;
}
</style>
<body>
<div class = "container">
<div class = "box box1">One</div>
<div class = "box box2">two</div>
<div class = "box box3">three</div>
<div class = "box box4">four</div>
<div class = "box box5">five</div>
<div class = "box box6">six</div>
</div>
</body>
</html>
