align-content
作用:
会设置自由盒内部各个项目在垂直方向排列方式。
条件:
必须对父元素设置自由盒属性display:flex;,并且设置排列方式为横向排列flex-direction:row;并且设置换行,flex-wrap:wrap;这样这个属性的设置才会起作用。
设置对象:
这个属性是对她容器内部的项目起作用,对父元素进行设置。
取值:
stretch:默认设置,会拉伸容器内每个项目占用的空间,填充方式为给每个项目下方增加空白。第一个项目默认从容器顶端开始排列。
<span style="color: #800000;">html> <meta charset="UTF-8"> <title> Align-content </title> <style> #father</style></span>{<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">200px</span>;<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">flex</span>;<span style="color: #ff0000;"> flex-direction</span>:<span style="color: #0000ff;">row</span>;<span style="color: #ff0000;"> flex-wrap</span>:<span style="color: #0000ff;">wrap</span>;<span style="color: #ff0000;"> align-content</span>:<span style="color: #0000ff;">strech</span>;<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">200px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">grey</span>; }<span style="color: #800000;"> .son1</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">orange</span>; }<span style="color: #800000;"> .son2</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">red</span>; }<span style="color: #800000;"> .son3</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">#08a9b5</span>; }<span style="color: #800000;"> <div id="father"> <div class="son1"> q </div> <div class="son2"> w </div> <div class="son3"> e </div> <div class="son3"> e </div> <div class="son3"> e </div> </div> </span>
Center:这个会取消项目之间的空白并把所有项目垂直居中。
<span style="color: #800000;">html> <meta charset="UTF-8"> <title> 关于文档元素测试 </title> <style> #father</style></span>{<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">200px</span>;<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">flex</span>;<span style="color: #ff0000;"> flex-direction</span>:<span style="color: #0000ff;">row</span>;<span style="color: #ff0000;"> flex-wrap</span>:<span style="color: #0000ff;">wrap</span>;<span style="color: #ff0000;"> align-content</span>:<span style="color: #0000ff;">center</span>;<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">200px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">grey</span>; }<span style="color: #800000;"> .son1</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">orange</span>; }<span style="color: #800000;"> .son2</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">red</span>; }<span style="color: #800000;"> .son3</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">#08a9b5</span>; }<span style="color: #800000;"> .son4</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">#9ad1c3</span>; }<span style="color: #800000;"> .son5</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">rgb(21,123,126)</span>; }<span style="color: #800000;"> <div id="father"> <div class="son1"> q </div> <div class="son2"> w </div> <div class="son3"> e </div> <div class="son4"> e </div> <div class="son5"> e </div> </div> </span>
Flex-start:这个会取消项目之间的空白,并把项目放在容器顶部。
<span style="color: #800000;">html> <meta charset="UTF-8"> <title> 关于文档元素测试 </title> <style> #father</style></span>{<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">200px</span>;<span style="color: #ff0000;"> display</span>:<span style="color: #0000ff;">flex</span>;<span style="color: #ff0000;"> flex-direction</span>:<span style="color: #0000ff;">row</span>;<span style="color: #ff0000;"> flex-wrap</span>:<span style="color: #0000ff;">wrap</span>;<span style="color: #ff0000;"> align-content</span>:<span style="color: #0000ff;">flex-start</span>;<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">200px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">grey</span>; }<span style="color: #800000;"> .son1</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">orange</span>; }<span style="color: #800000;"> .son2</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">red</span>; }<span style="color: #800000;"> .son3</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">#08a9b5</span>; }<span style="color: #800000;"> .son4</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">#9ad1c3</span>; }<span style="color: #800000;"> .son5</span>{<span style="color: #ff0000;"> height</span>:<span style="color: #0000ff;">30px</span>;<span style="color: #ff0000;"> width</span>:<span style="color: #0000ff;">100px</span>;<span style="color: #ff0000;"> background-color</span>:<span style="color: #0000ff;">rgb(21,123,126)</span>; }<span style="color: #800000;"> <div id="father"> <div class="son1"> q </div> <div class="son2"> w </div> <div class="son3"> e </div> <div class="son4"> e </div> <div class="son5"> e </div> </div> </span>
flex-end:这个会取消项目之间的空白并把项目放在容器底部。
align-content:flex-end;
space-between这个会使项目在垂直方向两端对齐。即上面的项目对齐容器顶部,最下面一个项目对齐容器底部。留相同间隔在每个项目之间。
align-content:space-between;
Space-around:这个会使每个项目上下位置保留相同长度空白,使得项目之间的空白为两倍的单个项目空白。
align-content:space-around;
Inherit:使得元素的这个属性继承自它的父元素。
innitial:使元素这个属性为默认初始值。

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