@charset "UTF-8";
#wrap {width:640px; height:auto; margin:0 auto; position:relative;}
#wrap header { width:640px; height:120px; position:relative; background:#fff; border-bottom:1px solid #d5d9e0; }
#wrap section { height:auto; margin:0 auto; }
#wrap section.sub { width:640px;}
#wrap nav { width:640px; height:60px; position:relative;  }
#wrap footer { height:auto; margin:0 auto; }