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<title>一个项目的布局(1)</title>
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<pre>
flex-direction属性决定主轴的方向(即项目的排列方向):(左中右 上中下)
flex-direction: row | row-reverse | column | column-reverse;
justify-content属性定义了项目在主轴上的对齐方式。(左中右)
justify-content: flex-start | flex-end | center | space-between | space-around;
align-items属性定义项目在交叉轴上如何对齐。(上中下)
align-items: flex-start | flex-end | center | baseline | stretch;
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<div class="rongqi">
<div class="xm" style="flex-direction:row;justify-content:flex-start;align-items:flex-start;">01</div>
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<div class="rongqi" style="flex-direction:row;justify-content:center;align-items:flex-start;">
<div class="xm">02</div>
</div><hr>
<div class="rongqi" style="flex-direction:row;justify-content:flex-end;align-items:flex-start;">
<div class="xm">03</div>
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<style>
.rongqi{ width:250px; height:250px; background-color:#CCC; display:flex;}
.xm{ width:70px; height:70px; background-color:#3CF; margin:5px;}
</style>
<div class="rongqi" style="flex-wrap:wrap;">
<div class="xm">01</div>
<div class="xm">02</div>
<div class="xm">03</div>
<div class="xm">04</div>
<div class="xm">05</div>
<div class="xm">06</div>
<div class="xm">07</div>
<div class="xm">08</div>
<div class="xm">09</div>
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