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<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
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<div class="w3-container">
<h2>Opacity Effect</h2>
<p>The w3-opacity classes add a transparency effect to an element.</p>
<p>Normal:</p>
<img src="img_snow_wide.jpg" style="width:300px">
<p>w3-opacity-min:</p>
<img src="img_snow_wide.jpg" class="w3-opacity-min" style="width:300px">
<p>w3-opacity:</p>
<img src="img_snow_wide.jpg" class="w3-opacity" style="width:300px">
<p>w3-opacity-max:</p>
<img src="img_snow_wide.jpg" class="w3-opacity-max" style="width:300px">
<div class="w3-panel w3-red w3-opacity">
<p>Red with opacity</p>
</div>
<div class="w3-panel w3-blue w3-opacity">
<p>Blue with opacity</p>
</div>
<div class="w3-panel w3-green w3-opacity">
<p>Green with opacity</p>
</div>
</div>
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