关于css中的align-content属性详解_html/css_WEB-ITnose
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。
<!DOCTYPE=html><html lang="zh-cn"><head><meta charset="UTF-8"><title>Align-content</title><style>#father{ width:200px; display:flex; flex-direction:row; flex-wrap:wrap; align-content:strech; height:200px; background-color:grey;}.son1{ height:30px; width:100px; background-color:orange;}.son2{ height:30px; width:100px; background-color:red;}.son3{ height:30px; width:100px; background-color:#08a9b5;}</style></head><body><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></body></html>
Center:这个会取消项目之间的空白并把所有项目垂直居中。
<!DOCTYPE=html><html lang="zh-cn"><head><meta charset="UTF-8"><title>关于文档元素测试</title><style>#father{ width:200px; display:flex; flex-direction:row; flex-wrap:wrap; align-content:center; height:200px; background-color:grey;}.son1{ height:30px; width:100px; background-color:orange;}.son2{ height:30px; width:100px; background-color:red;}.son3{ height:30px; width:100px; background-color:#08a9b5;}.son4{ height:30px; width:100px; background-color:#9ad1c3;}.son5{ height:30px; width:100px; background-color:rgb(21,123,126);}</style></head><body><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></body></html>
Flex-start:这个会取消项目之间的空白，并把项目放在容器顶部。
<!DOCTYPE=html><html lang="zh-cn"><head><meta charset="UTF-8"><title>关于文档元素测试</title><style>#father{ width:200px; display:flex; flex-direction:row; flex-wrap:wrap; align-content:flex-start; height:200px; background-color:grey;}.son1{ height:30px; width:100px; background-color:orange;}.son2{ height:30px; width:100px; background-color:red;}.son3{ height:30px; width:100px; background-color:#08a9b5;}.son4{ height:30px; width:100px; background-color:#9ad1c3;}.son5{ height:30px; width:100px; background-color:rgb(21,123,126);}</style></head><body><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></body></html>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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