Re: vh and vw as units for dimensions.

On Tue, May 28, 2013 at 6:28 AM, irfan mir <> wrote:
> I just learned about the vh and vw units and see how it would be very
> helpful in terms of typography.
> But in terms of using it as a unit for dimensions, what differentiates vh
> for height and vw for width from percent?
> Don't a 100 of all 3 take up the entire viewport?

As Henrik said, percentages are only equal to vw/vh on the html/body
elements, and on other elements if *every ancestor was 100%
width/height as well*.

That's obviously rarely true, so vw/vh let you use the viewport size
deeper into your page structure.

It also works for things where percentages are interpreted
differently, like font-size (where they're relative to the parent's


Received on Tuesday, 28 May 2013 14:00:48 UTC