body,html{
  margin:0;
  padding:0;
  width:100%;
  height:100%;
}
body::-webkit-scrollbar{
  display: none;
}
/* .body_bg{
  position:absolute;
  left:0;
  top:0;
  z-index:-998;
  width:100%;
  height:625.8px;
  background-image: url('../images/home/top_banner.png');
  background-position: 0 0;
  background-size: cover;
  background-repeat: no-repeat;
} */