Tryit Editor v2.9

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<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="../lib/w3.css">
<body>

<ul class="w3-navbar w3-black">
  <li><a href="tryit.asp-filename=tryw3css_ref_dropnav.html#" onclick="w3_open()">Home</a></li>
  <li><a href="tryit.asp-filename=tryw3css_ref_dropnav.html#" onclick="w3_open()">Link 1</a></li>
  <li><a href="tryit.asp-filename=tryw3css_ref_dropnav.html#" onclick="w3_open()">Link 2</a></li>
  <li><a href="tryit.asp-filename=tryw3css_ref_dropnav.html#" onclick="w3_open()">Link 3</a></li>
</ul>

<nav class="w3-dropnav w3-light-grey w3-card-2" style="display:none">
  <div class="w3-container">
  <span onclick="w3_close()" class="w3-closebtn w3-xlarge">×</span>
  </div>  
  <div class="w3-row-padding w3-padding-bottom">
    <div class="w3-third">
    <h3>HTML/CSS</h3>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn HTML</a>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn CSS</a>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn W3.CSS</a>
    </div>
    <div class="w3-third">    
    <h3>JavaScript</h3>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn JavaScript</a>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn jQuery</a>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn AppML</a>
    </div>
    <div class="w3-third">    
    <h3>Graphics</h3>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn Canvas</a>
    <a href="tryit.asp-filename=tryw3css_ref_dropnav.html#">Learn SVG</a>
    </div>
  </div>
  <br>
</nav>

<script>
function w3_open() {
    document.getElementsByClassName("w3-dropnav")[0].style.display = "block";
}
function w3_close() {
    document.getElementsByClassName("w3-dropnav")[0].style.display = "none";
}
</script>

</body>
</html>