@charset "UTF-8";
body{position:relative;overflow:hidden;}
.box{position:absolute;width:200px;height:500px;left: 50%;top: 50%;margin-left: -100px;margin-top: -250px;}
.link_box{position: relative;padding: 100%;}
.link_box a{position:absolute;top:0;left:0;width:100%;height:100%;text-indent:-9999px;}