* {
    margin: 0;
    padding: 0;
}
img{border:0px;}
a{
    text-decoration: none;
}
.mrg_center{width:1200px;margin:0 auto;}
.lf{float:left;}
.rt{float:right;}
.clearfix{content:'';display:block;clear:both;}

body {background:url(../img/bg.png) no-repeat 0 0;background-size:cover;position:relative;overflow:hidden;}