diff --git a/.DS_Store b/.DS_Store
index c0afa10..fbddce8 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/docs/3.setting_up_git.md b/docs/3.setting_up_git.md
index 9751e57..39c4485 100644
--- a/docs/3.setting_up_git.md
+++ b/docs/3.setting_up_git.md
@@ -39,6 +39,5 @@ On a command line, Git commands are written as `git verb options`, where `verb`
         $ git config --help
         ```
 
-
-
-<iframe src="../assets/git_basics_interactive_web_quiz.html#diagram-1" width="100%" height="700px" style="border: 2px solid #667eea; border-radius: 12px; margin: 20px 0;"></iframe>
\ No newline at end of file
+!!! Configuring Default Branch name to `main`  ( not needed for MacOS)
+    
\ No newline at end of file
diff --git a/docs/git_quiz.md b/docs/git_quiz.md
new file mode 100644
index 0000000..c0b1138
--- /dev/null
+++ b/docs/git_quiz.md
@@ -0,0 +1,37 @@
+<style>
+  .md-content__inner {
+    max-width: 100%;
+    padding: 0;
+  }
+  .md-content {
+    padding: 0;
+  }
+</style>
+
+<iframe src="../assets/git_basics_interactive_web_quiz.html#diagram-1" 
+        width="100%" 
+        height="100vh" 
+        style="border: none; display: block;">
+</iframe>
+
+<div style="position: relative; width: 100%; margin: 20px 0;">
+  <iframe src="../assets/git_basics_interactive_web_quiz.html#diagram-1" 
+          width="100%" 
+          height="700px" 
+          style="border: 2px solid #667eea; 
+                 border-radius: 12px; 
+                 display: block;
+                 max-width: 100%;">
+  </iframe>
+</div>
+
+<div style="position: relative; width: 100%; margin: 20px 0;">
+  <iframe src="../assets/git_basics_interactive_web_quiz.html#diagram-1" 
+          width="100%" 
+          height="700px" 
+          style="border: 2px solid #667eea; 
+                 border-radius: 12px; 
+                 display: block;
+                 max-width: 100%;">
+  </iframe>
+</div>
\ No newline at end of file
diff --git a/docs/index.md b/docs/index.md
index ca4f287..1b63706 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -9,7 +9,7 @@
     <span style="display: inline-block; animation: pulse 2s ease-in-out infinite;">🚧</span>
     Work in Progress
   </p>
-  <p>This repository is under active development.<br>Expected completion: <strong>12th of November 2025</strong></p>
+  <p>This repository is under active development.<br>Expected completion: <strong>20th of November 2025</strong></p>
 </div>
 
 <style>