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使用我们的宽度和高度实用程序轻松制作宽或高(相对于其父项)的元素。

宽度和高度实用程序从$sizesSass地图中生成_variables.scss。包括支持25%50%75%,和100%默认。根据需要在这里生成不同的实用程序,修改这些值。

<div class="w-25 p-3" style="background-color: #eee;">Width 25%</div><div class="w-50 p-3" style="background-color: #eee;">Width 50%</div><div class="w-75 p-3" style="background-color: #eee;">Width 75%</div><div class="w-100 p-3" style="background-color: #eee;">Width 100%</div>


<div style="height: 100px; background-color: rgba(255,0,0,0.1);">  <div class="h-25 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 25%</div>  <div class="h-50 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 50%</div>  <div class="h-75 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 75%</div>  <div class="h-100 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 100%</div></div>

您也可以根据需要使用max-width: 100%;和使用max-height: 100%;实用程序。

<img class="mw-100" src="..." alt="Max-width 100%">


<div style="height: 100px; background-color: rgba(255,0,0,0.1);">  <div class="mh-100" style="width: 100px; height: 200px; background-color: rgba(0,0,255,0.1);">Max-height 100%</div></div>
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