.tutto {width:100%}
.centro{width:700px;margin:0 auto;position:relative}

.centro p{height:45px;left:260px;position:absolute;top:450px;width:140px;}
.centro a{width:140px;height:33px;display:inline-block;text-indent:-999px}
.centro a{text-indent:0\9; display:block\9; text-align:left\9;}