*{margin:0;padding:0;box-sizing: border-box;}
body{overflow-x: hidden;position:relative;}	
.clearfix::after {clear: both;content: ".";display: block;height: 0;visibility: hidden;}
.body_div{margin:0 auto; min-width: 320px;}

.main_part{position:absolute;top:44%;left:49%;height:13%;width:45%}
.main_part a{display:inline-block;width:100%;/*height:45%;*/}

.main_part2{position:absolute;top:49%;left:49%;height:13%;width:45%}
.main_part2 a{display:inline-block;width:100%;/*height:45%;*/}



.main_part_left{position:absolute;top:4.6%;left:42%;height:2%;width:17%; font-size:36px;}