div.gallery{margin:5px;border:1px solid #ccc;float:left;width:180px;}div.gallery:hover{border:1px solid #777;}div.gallery img{width:100%;height:auto;}div.desc{padding:15px;text-align:center;}.bg h2{color:#002E3B;text-align:center;}.topnav{overflow:hidden;background-color:#333;}.topnav a{float:left;display:block;color:#f2f2f2;text-align:center;padding:14px 16px;text-decoration:none;font-size:17px;}.topnav a:hover{background-color:#ddd;color:black;}.topnav a.active{background-color:#4CAF50;color:white;}.topnav .icon{display:none;}@media screen and (max-width:600px){.topnav a:not(:first-child){display:none;}.topnav a.icon{float:right;display:block;}}@media screen and (max-width:600px){.topnav.responsive{position:relative;}.topnav.responsive .icon{position:absolute;right:0;top:0;}.topnav.responsive a{float:none;display:block;text-align:left;}}body{margin:0;font-size:28px;font-family:Arial, Helvetica, sans-serif;}.header{background-color:#f1f1f1;padding:30px;text-align:center;}#navbar{overflow:hidden;background-color:#333;}#navbar a{float:left;display:block;color:#f2f2f2;text-align:center;padding:14px 16px;text-decoration:none;font-size:17px;}#navbar a:hover{background-color:#ddd;color:black;}#navbar a.active{background-color:#4CAF50;color:white;}.content{padding:16px;}.sticky{position:fixed;top:0;width:100%;}.sticky + .content{padding-top:60px;}