@charset "UTF-8";

#lower header{width:100%;height:260px;background:url("_img/bg_header.jpg")}
#lower header .pict{width:1100px; margin:0 auto;}

section#main{width:750px; margin:40px auto;}
#main h2{width:639px;margin:20px auto; }
    

@media screen and (max-width: 667px) {

section#main{width:100%;}
section#main #chartImg{width:96%;margin:0 auto;}
#main h2{width:100%;margin:3% auto; }
    
#lower header{width:100%;height:auto;padding-bottom: calc(100%*260/750);background:url("_img/header_sp.jpg")no-repeat;background-size: 100% auto;}
#lower header .pict{display:none;}

    
    
    }