.flex-row {弹性方向:行；显示:弹性；}.flex 列 {弹性方向:列；显示:弹性；}.flex-body {显示:弹性；}.flex-body div:not([class*="flex"]) {边框:1px纯白色；弹性:1 1 200px；宽度:300px；}

<div class="flex-row"><div style="background: #0980cc;"></div>
<div class="flex-column"><div style="background: #09cc69;"></div><div style="background: #cc092f;"></div>