如何在div标签上制作背景色 [英] how to make a background-color on a div tag

问题描述

我有此代码:

 <div data-role="page" id="two">
    <div data-role="content" >

        <div id="pic1"></div>  
  </div>

和此javascript代码:

and this javascript code:

<script type="text/javascript">
    document.getElementById("pic1").setAttribute("background-color","red");
</script>

问题是我的div没有获得红色作为背景！怎么了?

The problem is that my div doesn't get the red color as a background! What's wrong?

推荐答案

您正在寻找元素上的 style 属性，没有 background-color 属性:

document.getElementById("pic1").style.backgroundColor = "red";

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也就是说，通常最好使用CSS设置样式并添加/删除类.

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That said, generally best to style things with CSS and add/remove classes.

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