html标题标签(< h1>，< h2>，< h3>等)的默认字体大小(以像素为单位)是什么? [英] What are the default font sizes (in pixels) for the html heading tags (<h1>, <h2>, <h3>, etc.)?

问题描述

标题(h1-h6)标签的默认字体像素大小是什么?

What are the default font pixel sizes for the heading (h1-h6) tags?

推荐答案

我认为如下:

h1 is 2 em
h2 is 1.5 em
h3 is 1.3 em
h4 is 1 em
h5 is 0.8 em
h6 is 0.7 em

em与像素不同.这是查看尺寸的相对方法.话虽如此，我认为大多数浏览器默认为16px(或1em).

An em is not the same as a pixel. It is a relative way of looking at sizes. With that said I think most browsers default to 16px (or 1em).

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