img{border:0;}
li{list-style-type:none; vertical-align:0}
.hidden{display:none;}
.show{ display:block;}
.fleft{float:left}
.fright{float:right}
.pr{ position:relative;}
.pa{ position:absolute}
.clear{ clear:both; height:0; line-height:0; overflow:hidden; font-size:0;}