<div class="content"> 
  <h2>fixed</h2>
  <table class="-fixed">
    <thead>
      <th>Name</th>
      <th>City</th>
      <th>Phone</th>
    </thead>
    <tbody>
      <tr>
        <td>Gregory</td>
        <td>New York</td>
        <td>918-745-9652</td>
      </tr>
      <tr>
        <td>Daniel</td>
        <td>San Francisco</td>
        <td>585-365-9088</td>
      </tr>
      <tr>
        <td>Megan</td>
        <td>London</td>
        <td>925-277-4296</td>
      </tr>
    </tbody>
  </table>
  
  <h2>auto (default)</h2>
  <table>
    <thead>
      <th>Name</th>
      <th>City</th>
      <th>Phone</th>
    </thead>
    <tbody>
      <tr>
        <td>Gregory</td>
        <td>New York</td>
        <td>918-745-9652</td>
      </tr>
      <tr>
        <td>Daniel</td>
        <td>San Francisco</td>
        <td>585-365-9088</td>
      </tr>
      <tr>
        <td>Megan</td>
        <td>London</td>
        <td>925-277-4296</td>
      </tr>
    </tbody>
  </table>
</div>

.-fixed {
  table-layout: fixed;
}

table {
  text-align: left;
  width: 400px;
}

h2 {
  margin-bottom: 0;
}

.content {
  margin: 0 auto;
  width: 400px;
  padding: 0 24px 24px;
}

html, body {
  height: auto;
  font-size: 14px;
}