IE not allowing tbody height to be set

Question

I have the following which is a mostly css scrollable table. Works great in Chrome and Firefox, but it will not set the height of the tbody element in IE 9. any thoughts?

http://jsfiddle.net/BvPNK/3/

function scrollify(table,height){

   table.find('thead').addClass('fixed_header');
   table.find('tbody').addClass('scroll_content').height(height);
   $('<div/>').addClass('table_wrap').appendTo(table.parent()).append(table);

} 

css

.fixed_header th,tbody.scroll_content td{
   display:block;
   float:left;
   width:3em;/*this is dynamically set in full function*/
}
.table_wrap{
    float:left;
}
.fixed_header tr{
     position:relative;

}
.scroll_content{
    display:block;
    overflow-y:scroll;
    overflow-x:show;
}

Answer 1

It appears that it is simply an issue with IE not respecting tbody (or table for that matter) height css property. I could not for the life of me style the height for table or tbody elements in IE. You can see in this answer , that the last comment mentions it does not work for IE.

Answer 2

to set the css height of ein element you should use the css-function. the height function should be used to do mathematical stuff.

you did that correct in your second fiddle. if you do this, you should call your function with a string as param, and your unit:

scrollify($('table'), "300px");

edit: there really seems to be an issue with height and ie9. innerHeight though should work.

i updated the fiddle: http://jsfiddle.net/BvPNK/10/