html - 如何将 html 正文标签的 16 px 设为 62.5%，以便 px 到 em 的转换变得更容易？

Question

我在 Quora 上阅读了以下内容:

By setting the font-size of the (which by default its 16px) to 62.5%, setting em based font-sizes for the rest of the page becomes very simple. just divide the intended pixel size by 10 to get the equivalent size in ems.

10px = 1.0 em 11px = 1.1em 12px = 1.2em

这是如何工作的，我该如何实现？

Answer 1

这是我用的。

html { font-size: 62.5%; }