语法高亮，滚动条美化，设置页面调整

docs/javascript/Reference/Global_Objects/Map/@@species.html

@@ -2,18 +2,18 @@
 <div></div>
 <p> <code><strong>Map[@@species]</strong></code> 访问器属性会返回一个 <code>Map</code> 构造函数.</p>
 <h2 id="语法">语法</h2>
-<pre class="syntaxbox">Map[Symbol.species]
-</pre>
+<pre><code class="language-javascript">Map[Symbol.species]
+</code></pre>
 <h2 id="描述">描述</h2>
 <p>The species accessor property returns the default constructor for <code>Map</code> objects. Subclass constructors may over-ride it to change the constructor assignment.</p>
 <h2 id="案例">案例</h2>
 <p>The species property returns the default constructor function, which is the <code>Map</code> constructor for <code>Map</code> objects:</p>
-<pre class="brush: js">Map[Symbol.species]; // function Map()</pre>
+<pre><code  class="language-javascript">Map[Symbol.species]; // function Map()</code></pre>
 <p>In a derived collection object (e.g. your custom map <code>MyMap</code>), the <code>MyMap</code> species is the <code>MyMap</code> constructor. However, you might want to overwrite this, in order to return parent <code>Map</code> objects in your derived class methods:</p>
-<pre class="brush: js">class MyMap extends Map {
+<pre><code  class="language-javascript">class MyMap extends Map {
   // 重写覆盖 MyMap species to the parent Map constructor
   static get [Symbol.species]() { return Map; }
-}</pre>
+}</code></pre>
 <h2 id="规范">规范</h2>
 <table class="standard-table">
 <tbody>