Why doesn't height: 100% work to expand divs to the screen height?

html css height
Earl Larson picture Earl Larson · Aug 13, 2011 · Viewed 442k times · Source

I want the carousel DIV (s7) to expand to the height of the entire screen. I haven't an idea as to why it's not succeeding. To see the page you can go here.

Answer

Madara's Ghost picture Madara's Ghost · Aug 13, 2011

In order for a percentage value to work for height, the parent's height must be determined. The only exception is the root element <html>, which can be a percentage height. .

So, you've given all of your elements height, except for the <html>, so what you should do is add this:

html {
    height: 100%;
}

And your code should work fine.

* { padding: 0; margin: 0; }
html, body, #fullheight {
    min-height: 100% !important;
    height: 100%;
}
#fullheight {
    width: 250px;
    background: blue;
}
<div id=fullheight>
  Lorem Ipsum        
</div>

JsFiddle example.

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