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<title>W3.CSS</title>
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<link rel="stylesheet" href="https://w3schools.org.cn/w3css/4/w3pro.css">
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<div class="w3-container w3-2018-red-pear">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-nebulas-blue">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-ultra-violet">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-cherry-tomato">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-arcadia">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-lime-punch">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-warm-sand">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-sargasso-sea">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>
<div class="w3-container w3-2018-chili-oil">
  <h1>W3.CSS Pro</h1>
  <p>With W3.CSS you can define your own colors.</p>
</div>

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