kauzlein

$(function(){
	$('ul.nav li a').each(function(){
		if(document.location.pathname == $(this).attr('href')){
			$(this).parent().addClass('active');
		}
	});
});

.square-items {
    padding: 5px;
    border-radius: 10px;
    display: inline-block;
    cursor: pointer;
    margin: 5px;
    overflow: hidden;
}

.square-item {
    position: relative;
}