diff --git a/iframe/index.html b/iframe/index.html
index e22d409..c0a072c 100644
--- a/iframe/index.html
+++ b/iframe/index.html
@@ -17,7 +17,8 @@
         </a>
         <h1>Iframe Tag</h1>
         <iframe src="https://www.youtube.com/embed/tgbNymZ7vqY"
-        width="560" height="315" boder="1" frameborder="0" allowfullscreen></iframe>
+        width="560" height="315"  frameborder="0" allowfullscreen
+        class="embed-youtube"></iframe>
         </div>
 
     </body>
diff --git a/main.css b/main.css
index 71d466c..dd07bb0 100644
--- a/main.css
+++ b/main.css
@@ -75,3 +75,8 @@ dialog::backdrop {
   );
   backdrop-filter: blur(3px);
 }
+
+
+.embed-youtube {
+  border: 1px solid #ffffff;
+}
\ No newline at end of file