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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-signal.css"><body><div class="w3-container"> <h1>Using w3-colors-signal</h1></div><table class="w3-table w3-large"> <tr><td class="w3-signal-yellow">w3-signal-yellow</td></tr> <tr><td class="w3-signal-orange">w3-signal-orange</td></tr> <tr><td class="w3-signal-red">w3-signal-red</td></tr> <tr><td class="w3-signal-violet">w3-signal-violet</td></tr> <tr><td class="w3-signal-blue">w3-signal-blue</td></tr> <tr><td class="w3-signal-green">w3-signal-green</td></tr> <tr><td class="w3-signal-grey">w3-signal-grey</td></tr> <tr><td class="w3-signal-brown">w3-signal-brown</td></tr> <tr><td class="w3-signal-white">w3-signal-white</td></tr> <tr><td class="w3-signal-black">w3-signal-black</td></tr></table></body></html>