#topicheader {background: #fff;border-bottom: 1px solid #d9d9d9;display: flex;justify-content: space-between;align-items: center;margin: 0 auto;padding: 1% 2%;}
#snlogo {width: 25%;max-width: 125px;}
#snlogo img {margin: 5% auto;}
#navlist {width: 70%;display: flex;justify-content: space-between;align-items: center;}
#navlist li {color: #eee;font-size: 3.4vmin;}
#navlist li a {color: #666;text-decoration: none;}
#navlist li a:hover {text-decoration: underline;}
.copyright {text-align: center;margin: 10px auto;}
.mxwidth {max-width: 750px;height: 100%;margin: 0 auto;}
@media screen and (min-width: 640px) {#navlist {width: 50%;}#navlist li {font-size: 18px;}}