Recommended tutorial: Bootstrap tutorial
1. First we need to Define a css style
.bg { background:url(图片地址) no-repeat center; background-size:contain; }
2. Reference it in the div where we need to use the style
<div class="row bg">
3. If you need the picture not to scroll with the scroll bar, that is, to be fixed, add fixd
.bg { background:url(图片地址) no-repeat center fixed; background-size:contain; }
Original article address: https://www.cnblogs.com/Hayley1666/p/8479491. html
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