How to align Div correctly

[sjnibcg]

I would like to create such Div structure\[code\]--------div-container-----------------div-menu------------div-title--|--div-submenu-<div class="div-container"> <div class="div-menu"> </div> <div class="div-content"> <div class="div-title"> </div> <div class="div-submenu"> </div> <div></div>\[/code\]The problem is that I do not know how to set div-menu to take the whole row and div-title and div-submenu put on the same row. I have tried to set float:left for div-title and float:right for div-submenu but these divs then takes the space from div-menu.