Can someone help me understand what the measurement em stands for?
I have been running into the measurement em (or is it en) and I cannot find an explanation as to what it means. Can someone explain it to me with an example or two?
Thank you
Allen Macfalda
Murray *ACP* wrote:
It's a relative font metric. 1em means use the browser's default size, while .5em means use half the browser's default size. The default size is usually 16px, unless changed by some other CSS on the site.
Hi
To add to whar Murray has written, the relative font metric actually comes from the size of the letter 'm'. This means that if you have a width of 20em it will be 20 times the width of the letter 'm' in your chosen font not the browsers default font, (thats the theory). Some older browsers may use the browsers default font, (NN4, I did say old!) or even a few current mobile browsers.
It is also possible, (in a few modern browsers) to use en or ex for the mesurement, and these are based on the letter 'n' and 'x' respectively.
PZ
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