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Akhter Rasool
Akhter Rasool
8,597 Points

Em units for fontsizes

If i use the following code:

body{ font-size:1 em; }

will my body font-size increase or decrease as i increase or decrease my browser's width? if no, could you tell me what happens?

1 Answer

Miroslav Kovac
Miroslav Kovac
11,454 Points


The 'em' units are units which set the font-size relative to the parent element (for body it is html element). So, I think that your css

body{ font-size: 1em; } 

is not the correct use. First you should define the default font-size like:

html { font-size: 16px; }

Then the 16px will be also used for body element because of '1em'.

But in any case, I think that the 'em' units will not helps you to change your font-size depending on browser width.

You ca try to use @media queries or viewport units for this.

@media screen and (min-device-width: 600px) { 
  p {  font-size: 1.25em; }
p {  font-size: 4vw; }
Akhter Rasool
Akhter Rasool
8,597 Points

Allright, thank you.