@charset "utf-8";
html{ 
background: url(../images/bg01.png) no-repeat center center fixed; 
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
.main_content{
width:620px;
height:500px;
background:#fff;
border-radius:20px;
color:#61ACA0;
margin:0 auto;
line-height:500px;
text-align:center;
font-weight:bold;
font-size:20px;
}