css - give full available height - html

Question

I have the following setup
Html:
<div id="resizable">
<div id="fixHeightTop">Whatever</div>
<div id="problematicDiv">Whatever</div>
<div id="semiProblematicDiv">Whatever</div>
<div id="fixHeightBottom">Whatever</div>
</div>
Css:
#resizable {
position: relative;
}
#fixHeightTop {
position: relative;
height: 10px;
}
#fixHeightBottom {
position: absolute;
height: 10px;
}
#problematicDiv {
position: relative;
float: left;
width: 80%;
overflow: auto;
}
#semiProblematicDiv {
position: relative;
float: right;
width: 20%;
overflow: auto;
}
The #resizable div is resizable (jQuery). What I need to do is to give to problematicDiv and semiProblematicDiv a height equal to 100% - fixHeightTop height - fixHeightBottom height so I can extend it on the full height of the resizable element. The problem is that I can't figure out a way to do it. If I use height: 100% it overlaps the bottom element.
Any ideas how to do that?

Answer 1

If I understood you right, you want to have two div with a fixed height and the two other divs show take up the rest of the height. If this is what you want, here is a way to do it.
#resizable {
height: 80px; //this is changed by JQuery, right?
}
#fixHeightTop {
height: 20px;
}
#fixHeightBottom {
height: 20px;
}
#problematicDiv {
position: relative;
float: left;
width: 80%;
overflow: auto;
height: 100%; //this helps the div taking up the space
}
#semiProblematicDiv {
position: relative;
float: right;
width: 20%;
overflow: auto;
height: 100%; //this helps the div taking up the space
}

Answer 2

i have an idea, try to use position:absolute;
#problematicDiv {
position: absolute;
top: 0px;
left: 0px;
width: 80%;
height: 100%; // Now you can apply height 100%
overflow: auto;
}
#semiProblematicDiv {
position: absolute;
top: 0px;
right: 0px;
width: 20%;
height: 100%; // Now you can apply height 100%
overflow: auto;
}
Good luck