3 files changed, 9 insertions, 9 deletions
diff --git a/files/ja/mdn/guidelines/code_guidelines/css/index.html b/files/ja/mdn/guidelines/code_guidelines/css/index.html
index 4f4449ba5c..c237604255 100644
--- a/files/ja/mdn/guidelines/code_guidelines/css/index.html
+++ b/files/ja/mdn/guidelines/code_guidelines/css/index.html
@@ -139,7 +139,7 @@ font-family: sans-serif;</pre>
    direction | fill-mode | play-state | name */
 animation: 3s ease-in 1s 2 reverse both paused slidein;</pre>
 
-<p>As an example, the first value that can be parsed as a {{cssxref("time", "&lt;time&gt;")}} is assigned to the {{cssxref("animation-duration")}}, and the second one is assigned to {{cssxref("animation-delay")}}. For more details, read the full <a href="/en-US/docs/Web/CSS/animation#Syntax">animation syntax</a> details.</p>
+<p>As an example, the first value that can be parsed as a {{cssxref("time", "&lt;time&gt;")}} is assigned to the {{cssxref("animation-duration")}}, and the second one is assigned to {{cssxref("animation-delay")}}. For more details, read the full <a href="/ja/docs/Web/CSS/animation#Syntax">animation syntax</a> details.</p>
 
 <h3 id="Use_double_quotes_around_values" name="Use_double_quotes_around_values">値の周りには二重引用符を使用する</h3>
 
@@ -210,7 +210,7 @@ background-image: linear-gradient(to bottom, red, black);</pre>
   /*CSS for really wide screens*/
 }</pre>
 
-<p>This has many advantages, outlined in our <a href="/en-US/docs/Web/Apps/Progressive/Responsive/Mobile_first">Mobile First</a> article.</p>
+<p>This has many advantages, outlined in our <a href="/ja/docs/Web/Apps/Progressive/Responsive/Mobile_first">Mobile First</a> article.</p>
 
 <h2 id="Selectors" name="Selectors">セレクター</h2>
 
diff --git a/files/ja/mdn/guidelines/code_guidelines/html/index.html b/files/ja/mdn/guidelines/code_guidelines/html/index.html
index 167160be4b..e674d8ca22 100644
--- a/files/ja/mdn/guidelines/code_guidelines/html/index.html
+++ b/files/ja/mdn/guidelines/code_guidelines/html/index.html
@@ -27,7 +27,7 @@ translation_of: MDN/Guidelines/Code_guidelines/HTML
  </li>
  <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML#General_markup_coding_style">一般的なマークアップコーディングスタイル</a>
   <ul>
-   <li><a href="https://developer.mozilla.org/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML#Use_lowercase">小文字を使う</a></li>
+   <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML#Use_lowercase">小文字を使う</a></li>
    <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML#Trailing_slashes">末尾のスラッシュ</a></li>
    <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML#Quoting_attributes">属性の引用</a></li>
    <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML#Use_double_quotes">ダブルクォートを使う</a></li>
diff --git a/files/ja/mdn/guidelines/code_guidelines/index.html b/files/ja/mdn/guidelines/code_guidelines/index.html
index 3ce931004f..ed2cb9de33 100644
--- a/files/ja/mdn/guidelines/code_guidelines/index.html
+++ b/files/ja/mdn/guidelines/code_guidelines/index.html
@@ -25,7 +25,7 @@ translation_of: MDN/Guidelines/Code_guidelines
 </div>
 
 <div class="note">
-<p><strong>Note</strong>: If you want advice on the styling of code as it appears on an MDN article, rather than the code content, see our <a href="/en-US/docs/MDN/Contribute/Guidelines/Writing_style_guide#Code_sample_style_and_formatting">Writing style guide</a>.</p>
+<p><strong>Note</strong>: If you want advice on the styling of code as it appears on an MDN article, rather than the code content, see our <a href="/ja/docs/MDN/Contribute/Guidelines/Writing_style_guide#Code_sample_style_and_formatting">Writing style guide</a>.</p>
 </div>
 
 <h2 id="Article_structure">Article structure</h2>
@@ -33,11 +33,11 @@ translation_of: MDN/Guidelines/Code_guidelines
 <p>This article contains general high-level best practices for writing MDN code examples. Its subarticles are as follows:</p>
 
 <ul>
- <li><a href="/en-US/docs/MDN/Contribute/Guidelines/Code_guidelines/General">General guidelines for all code</a> — both syntactical and for styling/displaying examples</li>
- <li><a href="/en-US/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML">HTML guidelines</a></li>
- <li><a href="/en-US/docs/MDN/Contribute/Guidelines/Code_guidelines/CSS">CSS guidelines</a></li>
- <li><a href="/en-US/docs/MDN/Contribute/Guidelines/Code_guidelines/JavaScript">JavaScript guidelines</a></li>
- <li><a href="/en-US/docs/MDN/Contribute/Guidelines/Code_guidelines/Shell">Shell prompt guidelines</a></li>
+ <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/General">General guidelines for all code</a> — both syntactical and for styling/displaying examples</li>
+ <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/HTML">HTML guidelines</a></li>
+ <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/CSS">CSS guidelines</a></li>
+ <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/JavaScript">JavaScript guidelines</a></li>
+ <li><a href="/ja/docs/MDN/Contribute/Guidelines/Code_guidelines/Shell">Shell prompt guidelines</a></li>
 </ul>
 
 <h2 id="General_best_practices">General best practices</h2>