CSS 为什么字体大小不会改变？
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Why font size does not change?
提问by hiway
I want to set font size with em, not px. Here is my code:
我想用 设置字体大小em，而不是px。这是我的代码：
<style type="text/css">
body{
font-size: 62.5%;
}
div{
font-size: 1.2em;
}
</style>
<body>
<div>hello world</div>
</body>
I want to set divfont size to be 12px, but it looks small than I expect, I disable divstyle with chrome browser tools, it does not look to have any change. Why and how should I do to make divfont size 12px? Thanks.
我想将div字体大小设置为 12px，但它看起来比我预期的要小，我div使用 chrome 浏览器工具禁用了样式，它看起来没有任何变化。为什么以及我应该怎么做才能使div字体大小为 12px？谢谢。
采纳答案by Michael Nguyen
hmm, seems to work for me: example
嗯，似乎对我有用：例如
Though, what you might be referring to is littlechange from enabling/disabling the font-sizeproperty. This is because the emfor nested elements is relative to their parents font-size. In your instance, the font-size:Xemfor the div is relative to the font-size:X%of the body.
不过，您可能指的是启用/禁用该属性的变化很小font-size。这是因为emfor 嵌套元素是相对于它们的父元素的font-size。在你的例子中，font-size:Xemdiv 是相对于font-size:X%身体的。
If your still getting no change, try setting your body's font-sizeto a larger percentage to make your div's font larger
如果您仍然没有变化，请尝试将您的body'sfont-size设置为更大的百分比以使您的div's 字体更大
