diff --git a/src/app/tab1/tab1.page.html b/src/app/tab1/tab1.page.html
index 97b90d0..3c3964c 100644
--- a/src/app/tab1/tab1.page.html
+++ b/src/app/tab1/tab1.page.html
@@ -34,7 +34,7 @@
 
   <ion-card class="welcome-card" style="background-color: aliceblue;">
     <div class="video-container">
-      <iframe src="https://www.youtube.com/embed/wyVM1evRxNw" frameborder="0" width="560" height="315"></iframe>
+      <iframe src="https://oameye.works.coregrade.com/uploads/DV/RaspberryPi/Measuring Distance with Raspberry Pi and HC-SR04 Utrasonic Sensor.mp4" frameborder="0" width="100%" height="315"></iframe>
     </div>
     <ion-card-header>
       <ion-card-subtitle>Video</ion-card-subtitle>