@charset "utf-8";

#groupmenu {display:flex;flex-direction: row;justify-content: flex-start;flex-wrap: wrap;margin:0 auto;}
#nav1 {width:50%;border: 1px solid #bbb;box-sizing: border-box;}
#nav1:nth-child(2n){border-right:none}
#nav1 ul li {text-align:center}
#nav1 ul li a {display:block;width:100%;padding:1em 0;font:menu;font-size:1.125em;}
#nav1 ul li a:hover {color:#23395d}
#nav1 li.on a {background-color:#23395d;color:#fff}