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<html><title>W3.CSS</title><meta name="viewport" content="width=device-width, initial-scale=1"><link rel="stylesheet" href="https://www.w3schools.com/w3css/5/w3.css"><body><div class="w3-container"> <h2>Opacity/Transparency</h2> <p>The w3-opacity classes adds transparency to an element.</p> <p>Normal (100% opacity):</p> <img src="img_forest.jpg" alt="Forest" style="width:150px"> <p>w3-opacity-min (75% opacity):</p> <img src="img_forest.jpg" alt="Forest" class="w3-opacity-min" style="width:150px"> <p>w3-opacity (60% opacity):</p> <img src="img_forest.jpg" alt="Forest" class="w3-opacity" style="width:150px"> <p>w3-opacity-max (25% opacity):</p> <img src="img_forest.jpg" alt="Forest" class="w3-opacity-max" style="width:150px"></div></body></html>