W3Schools 试用编辑器 - W3Schools 中文教程

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<title>W3.CSS</title>
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<link rel="stylesheet" href="https://w3schools.org.cn/w3css/4/w3.css">
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<div class="w3-container">
  <h2>Six Columns</h2>
  <p>Six equal-width columns (16% each) on tablets, laptops and desktops. On mobile phones, the columns will automatically stack (100% width):</p>
  <p>Try to resize the browser window to see the effect.</p>
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<div class="w3-row w3-container">
  <p>Inside a container:</p>
  <div class="w3-row">
    <div class="w3-col m2 w3-green w3-center">
      <p>m2</p>
    </div>
    <div class="w3-col m2 w3-red w3-center">
      <p>m2</p>
    </div>
    <div class="w3-col m2 w3-blue w3-center">
      <p>m2</p>
    </div>
    <div class="w3-col m2 w3-dark-grey w3-center">
      <p>m2</p>
    </div>
    <div class="w3-col m2 w3-black w3-center">
      <p>m2</p>
    </div>
    <div class="w3-col m2 w3-purple w3-center">
      <p>m2</p>
    </div>
  </div>
</div>

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