html, body, div, span, applet, object, iframe, 
h1, h2, h3, h4, h5, h6, p, blockquote, pre, 
a, abbr, acronym, address, big, cite, code, 
del, dfn, em, font, img, ins, kbd, q, s, samp, 
small, strike, strong, sub, sup, tt, var, 
b, u, i, center, 
dl, dt, dd, ol, ul, li, input, select,
fieldset, form, label, legend, 
table, caption, tbody, tfoot, thead, tr, th, td{margin:0; padding:0}
body{font-size:12px; font-family:"Tahoma", "宋体", "SimSun", "Arial Narrow"}
input, select{font-size:12px; font-family:"Tahoma", "宋体", "SimSun", "Arial Narrow"}
img{border:none}
ul, li{list-style:none}
.fl{float:left}
.fr{float:right}
.tl{text-align:left}
.tc{text-align:center}
.tr{text-align:right}
.fb{font-weight:bold}
.ofh{overflow:hidden}
.dn{display:none}
.clear{clear:both; height:0; font-size:0; overflow:hidden}
a{text-decoration:none; color:#0000ff}
a:hover{color:#e40000; text-decoration:underline}