#sitenav {float:left;position: absolute; margin: 0; padding: 0; width: 206px; height: 52px; background: transparent;}
#sitenav li {width: 50px; height: 50px; position: absolute; top: 0; background: url(http://www.lopressure.net/images/sitenav-icons.png) 0 0 no-repeat; display: block; list-style: none;}
#sitenav a {width: 50px; height: 50px; display: block; border: solid 1px #fff;}
#sitenav a:hover {border: solid 1px #000;}
#sitenav #sitenav-one {left: 2px;}
#sitenav #sitenav-two {left: 54px; background-position: -51px 0;}
#sitenav #sitenav-three {left: 106px; background-position: -102px 0;}
#sitenav #sitenav-four {left: 158px; background-position: -153px 0;}
#sitenav #sitenav-one a:hover {background: url(http://www.lopressure.net/images/sitenav-icons.png) -1px -52px no-repeat;}
#sitenav #sitenav-two a:hover {background: url(http://www.lopressure.net/images/sitenav-icons.png) -52px -52px no-repeat;}
#sitenav #sitenav-three a:hover {background: url(http://www.lopressure.net/images/sitenav-icons.png) -103px -52px no-repeat;}
#sitenav #sitenav-four a:hover {background: url(http://www.lopressure.net/images/sitenav-icons.png) -154px -52px no-repeat;}