diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 00000000..0478db32
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,7 @@
+We can set: <meta name="viewport" content="width=device-width, initial-scale=1.0"> in header file.
+
+This gives the browser instructions on how to control the page's dimensions and scaling.
+
+The width=device-width part sets the width of the page to follow the screen-width of the device (which will vary depending on the device).
+
+The initial-scale=1.0 part sets the initial zoom level when the page is first loaded by the browser.
diff --git a/Introduction to CSS/Lesson 1/index.html b/Introduction to CSS/Lesson 1/index.html
index 240e80af..bf37a443 100644
--- a/Introduction to CSS/Lesson 1/index.html	
+++ b/Introduction to CSS/Lesson 1/index.html	
@@ -2,6 +2,7 @@
 <html>
     <head>
         <title>The Generics</title>
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
         <meta name="description" content="This is the description">
     </head>
     <body>
@@ -106,4 +107,4 @@ <h3>The Generics</h3>
             </ul>
         </footer>
     </body>
-</html>
\ No newline at end of file
+</html>
