@charset "utf-8";

#groupmenu {display:flex;justify-content:space-between;width:1100px;margin:50px auto;border:1px solid #ddd}
#nav1 {width:100%;border-right:1px solid #ddd}
#nav1:last-child {border-right:none}
#nav1 ul li {text-align:center}
#nav1 ul li a {display:block;width:100%;padding:1em 0;font:menu;font-size:1em}
#nav1 ul li a:hover {color:#3a8afd}
#nav1 li.on a {background-color:#3a8afd;color:#fff}