#wp_slider { height: 500px; }

#slider { position: relative; height: 300px; top: 155px; border-bottom: 1px solid gray; }

#prevBtn, #nextBtn { height: 312px; width: 30px; display: inline; position: relative; top: -158px; opacity: 0.5; }
#prevBtn a, #nextBtn a { display: block; width: 30px; height: 312px; }

#prevBtn { float: left; }
#nextBtn { float: right; }
#prevBtn:hover,
#nextBtn:hover { cursor: pointer; opacity: 0.7; }

#prevBtn { float: left; background: url("../img/arrow_back.png") 3px 150px no-repeat white; border-right: 1px solid; }
#nextBtn { float: right; background: url("../img/arrow_next.png") 3px 150px no-repeat white; border-left: 1px solid; } 

#slider ul, #slider li { margin: 0; padding: 0; list-style: none; }
#slider li { width:960px; height:300px; overflow:hidden; }