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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="4/w3.css">
<body>
​
<div class="w3-container">
  <h2>Hover Opacity</h2>
  <p>The w3-hover-opacity class adds transparency to an element when you move the mouse over it:</p>
​
  <img src="img_snowtops.jpg" class="w3-hover-opacity" alt="Norway" style="width:50%">
​
  <div class="w3-panel w3-red w3-hover-opacity"> 
    <p>Hover over me</p>
  </div>
</div>
​
</body>
​
<!-- Mirrored from www.w3schools.com/w3css/tryit.asp?filename=tryw3css_ref_hover_opacity by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:12:33 GMT -->
</html>
​
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