body {line-height:1.5;font-family:arial,"宋体";}
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,
form,fieldset,legend,input,button,textarea,p,blockquote,th,td {
    margin:0;
    padding:0;
}
h1,h2,h3,h4,h5,h6 {font-size:100%;}
ol,ul{list-style:none;}
address,caption,cite,code,dfn,em,strong,th,var,optgroup {
    font-style:normal;
}
input,button,textarea,select,optgroup,option {
    font-family:inherit;
    font-size:inherit;
    font-style:inherit;
    font-weight:inherit;
    *font-size:100%;
}
fieldset,img,a img,:link img,:visited img{border:0;}
a{text-decoration:none;}
a:hover {text-decoration:underline;}
:focus {outline:0;}
table{border-collapse:collapse;border-spacing:0;}
caption,th {text-align:left;}
sup,sub {font-size:100%;vertical-align:baseline;}
blockquote,q {quotes:none;}
blockquote:before,blockquote:after,q:before,q:after{content:'';content:none;}
.clear,.clearfix:after {clear:both;height:0;overflow:hidden;display:block;}
.clearfix:after {visibility:hidden;content:".";}
.clearfix{*zoom:1;}

.btn_prev_gray,
.btn_next_gray {
  opacity: 0.3;
  _filter: alpha(opacity=30);
}

.common_wrap {width:960px;margin:0 auto;}
.common_cloms {clear:both;width:960px;margin:0 auto 10px;border:1px solid #ccc;}