@charset "utf-8";

#groupmenu {display:flex;justify-content:space-between;width:100%;max-width:1300px;margin:0 auto}
#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-size:1.125em}
#nav1 li.on a {background-color:#124d1e;font-weight:bold;color:#fff;}

@media(max-width: 992px){
    #groupmenu{overflow-x: auto; justify-content: flex-start;}
    #nav1{width: auto;}
    #nav1 ul li a{font-size: 14px; padding: 10px; white-space: nowrap;}
}