jQuery column equal height issue -

i'm trying display 2 divs height set 3rd of body width , match these height if divs require more space match 1 aother. equal height columns.

here have far:

var width = $('body').width(); var thirtyheight = width /10*3 $('.thirtyheight').css('height',thirtyheight); 

this gets width , sets height perfectly, i've tried using equal height snippets nothing yet has worked.

if has suggestions i'd love hear them.

check this

$('.thirtyheight').css({'height',thirtyheight+'px'});