How to set the background image to be adaptive in bootstrap

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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