@charset "utf-8";
body{position: relative;overflow-x:hidden}
* {  
  margin: auto;  
  padding: auto;  
  box-sizing: border-box;  
}  
  
body {  
  font-family: Arial, sans-serif;  
  color: #333;  
}  
  
a {  
  text-decoration: none;  
}  
  
ul, ol {  
  list-style: none;  
}
@viewport {  
  margin-left: auto;  
  margin-right: auto;  
}
.element {  
  -webkit-transition: all 0.3s ease;  
}  
/* banner */
.atm_banner { width: 100%; height: auto; position: relative; overflow:hidden;z-index:0；}
.atm_banner img{display:block;margin:0 auto}
.atm_banner_box{position:absolute;top:0;left:50%; top:0;}