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使用div实现图片成为背景图 #5

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apersonw opened this issue May 19, 2019 · 0 comments

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apersonw commented May 19, 2019

<div style="position:relative"><!--父div定位修改相对-->
  <!--盒子内其他的元素可写于此处，且每个div的z-index都要比图片盒子的高-->
  <div style="position:absolute;left:0;top:0"><img/></div><!--图片的盒子定位修改为绝对定位-->
</div>

注意，在使用相对定位时，无论是否进行移动，元素仍然占据原来的空间。因此，移动元素会导致它覆盖其它框。

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