body,p,h1,h2,h3,h4,h5,h6,li,ul,dd,dt,dl,table,tr,td,span{
    margin :0px;
    padding: 0px;
    font-family:"微软雅黑","宋体","黑体",arial;
    /*! color: #000; */
    font-size: 100%;
}

html,body{
    width: 100%;
    height: 100%;
}
a{
    text-decoration: none;
}
a:hover{
    text-decoration: none;
}
.clearfix:after{
    content: ".";
    display: block;
    height: 0px;
    font-size: 0px;
    visibility: hidden;
    clear: both;
}
img{
    border: 0px;
    vertical-align: top;
}
ul{
    list-style: none;
}
.bk,.bk5,.bk10,.bk15,.bk20{
    content: ".";
    display: block;
    visibility: hidden;
    height: 0px;
    font-size: 0px;
    clear:both;

}
.bk{
   height: 0px;
}
.bk5{
   height: 5px;
}
.bk10{
   height: 10px;
}
.bk15{
   height: 15px;
}
.bk20{
   height: 20px;
}
.mb5{
    margin-bottom:5px;
     }

.mb10{
    margin-bottom:10px;
     }
.mb15{
    margin-bottom:15px; 
    }
.mb20{
    margin-bottom:20px;
     }
.mb25{
    margin-bottom:25px;
     }
.mb30{
    margin-bottom:30px;
     }
.mb40{
    margin-bottom:40px;
     }
.mb45{
    margin-bottom:45px;
     }
.mb50{
    margin-bottom:50px; 
    }
.mb60{
    margin-bottom:60px;
     }
.mb130{
    margin-bottom:130px;
     }
.mb110{
    margin-bottom:110px;
     }
.fl{
        float: left;
     }
.fr{
        float: right;
     }
.tc{
    text-align: center;
}
.pr50{
    padding-left:50px; 
}