<!DOCTYPE html>
<html>
<head>
<style>
body {margin:0;}
ul.topnav {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
background-color: #333;
}
ul.topnav li {float: left;}
ul.topnav li a {
display: inline-block;
color: #f2f2f2;
text-align: center;
padding: 14px 16px;
text-decoration: none;
transition: 0.3s;
font-size: 17px;
}
ul.topnav li a:hover {background-color: #111;}
ul.topnav li.icon {display: none;}
@media screen and (max-width:680px) {
ul.topnav li:not(:first-child) {display: none;}
ul.topnav li.icon {
float: right;
display: inline-block;
}
}
@media screen and (max-width:680px) {
ul.topnav.responsive {position: relative;}
ul.topnav.responsive li.icon {
position: absolute;
right: 0;
top: 0;
}
ul.topnav.responsive li {
float: none;
display: inline;
}
ul.topnav.responsive li a {
display: block;
text-align: left;
}
}
</style>
</head>
<body>
<ul class="topnav">
<li><a class="active" href="tryit.asp-filename=tryhow_js_topnav.html#home">Home</a></li>
<li><a href="tryit.asp-filename=tryhow_js_topnav.html#news">News</a></li>
<li><a href="tryit.asp-filename=tryhow_js_topnav.html#contact">Contact</a></li>
<li><a href="tryit.asp-filename=tryhow_js_topnav.html#about">About</a></li>
<li class="icon">
<a href="javascript:void(0);" style="font-size:15px;" onclick="myFunction()">☰</a>
</li>
</ul>
<div style="padding-left:16px">
<h2>Responsive Topnav Example</h2>
<p>Resize the browser window to see how it works.</p>
</div>
<script>
function myFunction() {
document.getElementsByClassName("topnav")[0].classList.toggle("responsive");
}
</script>
</body>
</html>