This time I will bring you what length units are in css and what are the length units in css. Precautions What are the following are practical cases, let’s take a look.

1. There are two types of length units: relative and absolute. Relative length units specify a unit relative to other length properties . Style sheets that use relative units are easier to scale according to different output environments

Relative units are:

em:'font-size'

ex: The 'x-height'

'em' units of the relevant font are equal to the calculated value of the 'font-size' attribute of the element to which the rule applies. An exception is when 'em' appears in the value of the 'font-size' attribute itself, in which case the font size of the parent element is referenced. It can be used in vertical or horizontal measurements

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