I'm trying to make a semi-transparent div cover the whole screen. I tried this:
#dimScreen
{
width: 100%;
height: 100%;
background:rgba(255,255,255,0.5);
}
Add position:fixed
. Then the cover is fixed over the whole screen, also when you scroll.
And add maybe also margin: 0; padding:0;
so it wont have some space's around the cover.
#dimScreen
{
position:fixed;
padding:0;
margin:0;
top:0;
left:0;
width: 100%;
height: 100%;
background:rgba(255,255,255,0.5);
}
And if it shouldn't stick on the screen fixed, use position:absolute;
CSS Tricks have also an interesting article about fullscreen property.
Edit:
Just came across this answer, so I wanted to add some additional things.
Like Daniel Allen Langdon mentioned in the comment, add top:0; left:0;
to be sure, the cover sticks on the very top and left of the screen.
If you some elements are at the top of the cover (so it doesn't cover everything), then add z-index
. The higher the number, the more levels it covers.