语法高亮，滚动条美化，设置页面调整

docs/javascript/Reference/Global_Objects/String/quote.html

@@ -7,7 +7,7 @@
 <h2 id="Summary" name="Summary">概述</h2>
 <p>将字符串中包含的特殊字符进行转义(反斜杠),然后在字符串两边各加上一个双引号(<code>"</code>)并返回,并不修改原字符串.</p>
 <h2 id="Syntax" name="Syntax">语法</h2>
-<pre class="syntaxbox"><code><em>str</em>.quote()</code></pre>
+<pre><code class="language-javascript"><code><em>str</em>.quote()</code></code></pre>
 <h2 id="Examples" name="Examples">示例</h2>
 <table class="fullwidth-table">
 <thead>