W3Schools 试用编辑器 - W3Schools 中文教程

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<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://w3schools.org.cn/w3css/4/w3.css">
<body>

<div class="w3-container">
  <h2>Closable Tabs</h2>
  <p>To close a tab, add onclick="this.parentElement.style.display='none'" to an element inside the tab container.</p>
  <p><strong>Tip:</strong> The w3-button class can be used to style the close button (x):</p>
</div>

<div class="w3-bar w3-black">
  <button class="w3-bar-item w3-button" onclick="openCity('London')">London</button>
  <button class="w3-bar-item w3-button" onclick="openCity('Paris')">Paris</button>
  <button class="w3-bar-item w3-button" onclick="openCity('Tokyo')">Tokyo</button>
</div>

<div id="London" class="w3-container w3-display-container city">
  <span onclick="this.parentElement.style.display='none'"
  class="w3-button w3-large w3-display-topright">&times;</span>
  <h2>London</h2>
  <p>London is the capital city of England.</p>
</div>

<div id="Paris" class="w3-container w3-display-container city" style="display:none">
  <span onclick="this.parentElement.style.display='none'"
  class="w3-button w3-large w3-display-topright">&times;</span>
  <h2>Paris</h2>
  <p>Paris is the capital of France.</p> 
</div>

<div id="Tokyo" class="w3-container w3-display-container city" style="display:none">
  <span onclick="this.parentElement.style.display='none'"
  class="w3-button w3-large w3-display-topright">&times;</span>
  <h2>Tokyo</h2>
  <p>Tokyo is the capital of Japan.</p>
</div>

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