.navbar{background-color:#333;font-family:Arial,Helvetica,sans-serif;overflow:hidden}.navbar a{color:#fff;float:left;font-size:16px;padding:14px 16px;text-align:center;text-decoration:none}.dropdown{float:left;overflow:hidden}.dropdown .dropbtn{background-color:inherit;border:none;color:#fff;font-size:16px;font:inherit;margin:0;outline:0;padding:14px 16px}.dropdown:hover .dropbtn,.navbar a:hover{background-color:red}.dropdown-content{background-color:#f9f9f9;box-shadow:0 8px 16px 0 rgba(0,0,0,.2);display:none;left:0;position:absolute;width:100%;z-index:1}.dropdown-content .header{background:red;color:#fff;padding:16px}.dropdown:hover .dropdown-content{display:block}.column{background-color:#ccc;float:left;height:250px;padding:10px;width:33.33%}.column a{color:#000;display:block;float:none;padding:16px;text-align:left;text-decoration:none}.column a:hover{background-color:#ddd}.row:after{clear:both;content:"";display:table}@media screen and (max-width:600px){.column{height:auto;width:100%}}