I want to create fixed footer but , is it possible with 960 gs , because I am having trouble with height of container div . I can no set it to %100.
<div class="container_12" >
<div class="grid_3" id="side-space"></div>
<div class="grid_6">
<div id="content-box"></div>
</div>
<div class="grid_3" id="side-space"></div>
</div>