The forums ran from 2008-2020 and are now closed and viewable here as an archive.
Home › Forums › CSS › Expanding a div to be the full size of the body
Got a question about the parallax effect screencast, #9. It’s about expanding the div to be the full size of the body.
I realize that divs normally expand to be only as big as necessary to contain their content.
What I don’t get is why it’s necessary to use the position: absolute; left: 0; top: 0 … etc trick. Why doesn’t height: 100% & width: 100% work?
because you have to declare what 100% is.
put this in your css and it will work
then if you say that a div has to have a height of 100% it knows what 100% is.