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Thursday, 18 February 2016

CSS unit rem


CSS unit rem

The CSS unit rem can be used to set the font size of HTML elements relative to the font size of the root element. 1 rem represents the size of the base font within the root element - the <html> tag.

In the example code block, the font size for all the <span> elements will be twice the size of the font size declared for the root element.

html { font-size: 18px; } span { font-size: 2rem; }

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