remove name attribute for zh-CN

1 files changed, 5 insertions, 5 deletions

diff --git a/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html b/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html
index efc463d5b7..3fc466cb3b 100644
--- a/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html
+++ b/files/zh-cn/web/javascript/reference/global_objects/math/pi/index.html
@@ -5,7 +5,7 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/PI
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
-<h2 id="Summary" name="Summary">概述</h2>
+<h2 id="Summary">概述</h2>
 
 <p><code><strong>Math.PI</strong></code> 表示一个圆的周长与直径的比例，约为 3.14159：</p>
 
@@ -13,13 +13,13 @@ translation_of: Web/JavaScript/Reference/Global_Objects/Math/PI
 
 <div>{{js_property_attributes(0,0,0)}}</div>
 
-<h2 id="Description" name="Description">描述</h2>
+<h2 id="Description">描述</h2>
 
 <p>由于 <code>PI</code> 是 <code>Math</code> 的静态属性，所以应该像这样使用：<code>Math.PI</code>，而不是作为你创建的 <code>Math</code> 实例的属性（<code>Math</code> 不是构造函数）。</p>
 
-<h2 id="Examples" name="Examples">示例</h2>
+<h2 id="Examples">示例</h2>
 
-<h3 id="Example:_Using_PI" name="Example:_Using_PI">使用 <code>Math.PI</code></h3>
+<h3 id="Example:_Using_PI">使用 <code>Math.PI</code></h3>
 
 <p>下面的函数使用 Math.PI 计算给定半径的圆周长：</p>
 
@@ -108,7 +108,7 @@ calculateCircumference(1);  // 6.283185307179586</pre>
 </table>
 </div>
 
-<h2 id="See_also" name="See_also">相关链接</h2>
+<h2 id="See_also">相关链接</h2>
 
 <ul>
  <li>The {{jsxref("Global_Objects/Math", "Math")}} object it belongs to.</li>