*{padding:0; margin:0}
body{height:auto}
#gototop{position:fixed;bottom:5rem;right:1rem;z-index:999;height:2rem;width:2rem;background:url(../images/backtotop.png) no-repeat;cursor:pointer; display:none;padding-right: 2rem;padding-bottom: 3rem}
*html #gototop{position:fixed;cursor:pointer;right:1rem; display:none;top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight)+"rem")}