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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"><link rel="stylesheet" href="https://www.w3schools.com/lib/w3-colors-safety.css"><body><div class="w3-container"><h1>Using w3-colors-safety</h1><p><div class="w3-tag w3-safety-red w3-xxlarge">DANGER</div></p></div></body></html>