#content{ width:1200px; margin:0 auto; padding-top:30px; padding-bottom:40px;}

#workpic ul{ list-style:none; width:1150px;}

#workpic ul li a{ display:block; text-align:center; text-decoration:none; line-height:40px; color:#666; transition:background 0.5s,color 0.5s;}
#workpic ul li a:hover{ background:#84D16A; color:#fff;}