W3Schools 试用编辑器 - W3Schools 中文教程

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<title>W3.CSS</title>
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<div class="w3-container">
<h2>Navigation Bar Sizes</h2>
<p>Customize the width of the list items with the width property (Note: on smaller screens, they will transform to 100%):</p>

<p>Default with two items:</p>
<div class="w3-bar w3-border w3-light-grey">
  <a href="#" class="w3-bar-item w3-button w3-mobile w3-green">Link 1</a>
  <a href="#" class="w3-bar-item w3-button w3-mobile">Link 2</a>
</div>

<p>Two items, customized:</p>
<div class="w3-bar w3-border w3-light-grey">
  <a href="#" style="width:50%" class="w3-bar-item w3-button w3-mobile w3-green">Link 1</a>
  <a href="#" style="width:50%" class="w3-bar-item w3-button w3-mobile">Link 2</a>
</div>

<p>Two items <strong>centered:</strong></p>
<div class="w3-bar w3-border w3-light-grey w3-center">
  <a href="#" style="width:50%" class="w3-bar-item w3-button w3-mobile w3-green">Link 1</a>
  <a href="#" style="width:50%" class="w3-bar-item w3-button w3-mobile">Link 2</a>
</div>

<p>Three items:</p>
<div class="w3-bar w3-border w3-light-grey">
  <a href="#" style="width:33.33%" class="w3-bar-item w3-button w3-mobile w3-green">Link 1</a>
  <a href="#" style="width:33.33%" class="w3-bar-item w3-button w3-mobile">Link 2</a>
  <a href="#" style="width:33.33%" class="w3-bar-item w3-button w3-mobile">Link 3</a>
</div>

<p>Three items <strong>centered:</strong></p>
<div class="w3-bar w3-border w3-light-grey w3-center">
  <a href="#" style="width:33.33%" class="w3-bar-item w3-button w3-mobile">Link 1</a>
  <a href="#" style="width:33.33%" class="w3-bar-item w3-button w3-mobile">Link 2</a>
  <a href="#" style="width:33.33%" class="w3-bar-item w3-button w3-mobile">Link 3</a>
</div>

<p>Four items:</p>
<div class="w3-bar w3-border w3-light-grey w3-center">
  <a href="#" style="width:25%" class="w3-bar-item w3-button w3-mobile">Link 1</a>
  <a href="#" style="width:25%" class="w3-bar-item w3-button w3-mobile">Link 2</a>
  <a href="#" style="width:25%" class="w3-bar-item w3-button w3-mobile">Link 3</a>
  <a href="#" style="width:25%" class="w3-bar-item w3-button w3-mobile">Link 4</a>
</div>

<p>Five items:</p>
<div class="w3-bar w3-border w3-light-grey w3-center">
  <a href="#" style="width:20%" class="w3-bar-item w3-button w3-mobile">Link 1</a>
  <a href="#" style="width:20%" class="w3-bar-item w3-button w3-mobile">Link 2</a>
  <a href="#" style="width:20%" class="w3-bar-item w3-button w3-mobile">Link 3</a>
  <a href="#" style="width:20%" class="w3-bar-item w3-button w3-mobile">Link 4</a>
  <a href="#" style="width:20%" class="w3-bar-item w3-button w3-mobile">Link 5</a>
</div>

<p>Six items:</p>
<div class="w3-bar w3-border w3-light-grey w3-center">
  <a href="#" style="width:16.66%" class="w3-bar-item w3-button w3-mobile">Link 1</a>
  <a href="#" style="width:16.66%" class="w3-bar-item w3-button w3-mobile">Link 2</a>
  <a href="#" style="width:16.66%" class="w3-bar-item w3-button w3-mobile">Link 3</a>
  <a href="#" style="width:16.66%" class="w3-bar-item w3-button w3-mobile">Link 4</a>
  <a href="#" style="width:16.66%" class="w3-bar-item w3-button w3-mobile">Link 5</a>
  <a href="#" style="width:16.66%" class="w3-bar-item w3-button w3-mobile">Link 6</a>
</div>

<p>Other examples:</p>
<div class="w3-bar w3-border w3-light-grey w3-center">
  <a href="#" style="width:50%" class="w3-bar-item w3-button w3-mobile">Link</a>
  <a href="#" style="width:12.5%" class="w3-bar-item w3-button w3-mobile">Link</a>
  <a href="#" style="width:12.5%" class="w3-bar-item w3-button w3-mobile">Link</a>
  <a href="#" style="width:12.5%" class="w3-bar-item w3-button w3-mobile">Link</a>
  <a href="#" style="width:12.5%" class="w3-bar-item w3-button w3-mobile">Link</a>
</div>
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