<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {box-sizing: border-box;}
body {
margin: 0;
font-family: Arial, Helvetica, sans-serif;
}
.topnav {
overflow: hidden;
background-color: #e9e9e9;
}
.topnav a {
float: left;
display: block;
color: black;
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: #2196F3;
color: white;
}
.topnav input[type=text] {
float: right;
padding: 6px;
margin-top: 8px;
margin-right: 16px;
border: none;
font-size: 17px;
}
@media screen and (max-width: 600px) {