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docs/javascript/Reference/Global_Objects/ArrayBuffer/byteLength.html

@@ -4,14 +4,14 @@
 <div><iframe class="interactive interactive-js" frameborder="0" height="250" src="https://interactive-examples.mdn.mozilla.net/pages/js/arraybuffer-bytelength.html" width="100%"></iframe></div>
 <p class="hidden">The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone <a class="external" href="https://github.com/mdn/interactive-examples" rel="noopener">https://github.com/mdn/interactive-examples</a> and send us a pull request.</p>
 <h2 id="语法">语法</h2>
-<pre class="syntaxbox"><var>arr</var>aybuffer.byteLength</pre>
+<pre><code class="language-javascript"><var>arr</var>aybuffer.byteLength</code></pre>
 <h2 id="描述">描述</h2>
 <p>byteLength属性是一个访问器属性，它的set访问器函数是undefined，这意味着你只能读这个属性。 该值在数组创建时确定，并且不可变更。如果这个<code>ArrayBuffer</code> 被移除，则此属性返回0。</p>
 <p> </p>
 <h2 id="示例">示例</h2>
-<pre class="brush:js">var buffer = new ArrayBuffer(8);
+<pre><code class="language-js">var buffer = new ArrayBuffer(8);
 buffer.byteLength; // 8
-</pre>
+</code></pre>
 <h2 id="规范">规范</h2>
 <table class="standard-table">
 <tbody>