PHP:

function non_footer_start() {
echo '<div id="non_footer">';
}
add_action('thesis_hook_before_html','non_footer_start');
function non_footer_end() {
echo '</div>' . "\n";
}
add_action('thesis_hook_after_content_area','non_footer_end');


CSS:

html, .custom {height:100%;}
#non_footer {min-height:100%; height:auto !important; height:100%; margin:0 0 -9em;}
.ie #non_footer {padding-bottom:0 0 -9em; margin-bottom:0;}
.custom #footer_area {height:9em; clear:both;}

Sticky Footer in Thesis

wordpress

CSS