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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>Displaying a Note</h2> <div class="w3-panel w3-leftbar w3-pale-yellow w3-border-yellow"> <p>Notes are often displayed with a pale color and a colored left bar.</p> </div></div></body></html>