CSS question about em? -


I am trying to convert the margin values ​​of all my sites to pixels, but in a difficult fact I know what it really is I thought it was a fixed distance based on the browser setting (default font-size), but a standard 1em is different when applied for example h1 or ul. Any help?

a em font size (<

See results:

div style = "font-size: 14px"> 2em

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