diff --git a/index.html b/index.html
index 4da2f91..3380a94 100644
--- a/index.html
+++ b/index.html
@@ -1,35 +1,83 @@
-<html><head><title>Educational Bitcoin videos</title></head>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" href="./style.css">
+    <title>Educational Bitcoin videos</title>
+</head>
 <body>
-<h1>
-Bitcoin educational videos
-</h1>
+    <div class="container">
+        <h1 class="heading"> Bitcoin educational videos </h1>
+    </div>    
+    <div class="container">
+        <!-- Main video container start -->
+        <div class="main-video">
+            <div class="video">
+                <video controls autoplay>
+                    <source src="00-intro.mp4" type="video/mp4">
+                    <track default src="00-intro.vtt" kind="captions" srclang="en" label="English">
+                </video>
+                <h3 class="title">01. Intro</h3>
+            </div>
+        </div>
+        <!-- Main video container end -->
 
-<p>
-<video width="1280" height="720" controls>
-    <source src="00-intro.mp4" type="video/mp4">
-    <track default src="00-intro.vtt" kind="captions" srclang="en" label="English">
-</video>
-</p>
 
-<p>
-<video width="1280" height="720" controls>
-    <source src="01-analogies.mp4" type="video/mp4">
-    <track default src="01-analogies.vtt" kind="captions" srclang="en" label="English">
-</video>
-</p>
+        <!-- Sidebar scroller start -->
+        <div class="video-list">
+            <div class="vid active">
+                <video  controls muted autoplay>
+                    <source src="00-intro.mp4" type="video/mp4">
+                    <track default src="00-intro.vtt" kind="captions" srclang="en" label="English">
+                </video>
+                <h3 class="title">01. Intro</h3>
+            </div>
+            <div class="vid ">
+                <video  controls muted autoplay>
+                    <source src="01-analogies.mp4" type="video/mp4">
+                    <track default src="01-analogies.vtt" kind="captions" srclang="en" label="English">
+                </video>
+                <h3 class="title">02. Analogies</h3>
+            </div>
+            <div class="vid">
+                <video  controls muted autoplay>
+                    <source src="02-principles.mp4" type="video/mp4">
+                    <track default src="02-principles.vtt" kind="captions" srclang="en" label="English">
+                </video>
+                <h3 class="title">03. Principles</h3>
+            </div>
+            <div class="vid">
+                <video  controls muted autoplay>
+                    <source src="03-faq.mp4" type="video/mp4">
+                    <track default src="03-faq.vtt" kind="captions" srclang="en" label="English">
+                </video>
+                <h3 class="title">04. FAQ</h3>
+            </div>
+        </div>
+        <!-- Sidebar scroller start -->
+    </div>
 
-<p>
-<video width="1280" height="720" controls>
-    <source src="02-principles.mp4" type="video/mp4">
-    <track default src="02-principles.vtt" kind="captions" srclang="en" label="English">
-</video>
-</p>
 
-<p>
-<video width="1280" height="720" controls>
-    <source src="03-faq.mp4" type="video/mp4">
-    <track default src="03-faq.vtt" kind="captions" srclang="en" label="English">
-</video>
-</p>
+<script>
+    let listVideo= document.querySelectorAll('.video-list .vid');
+    let mainVideo= document.querySelector('.main-video video')
+    let title = document.querySelector('.main-video .title')
+    listVideo.forEach(video =>{
+        video.onclick = () =>{
+            listVideo.forEach(vid => vid.classList.remove('active'));
+            video.classList.add('active');
+            if(video.classList.contains('active')){
+                let src = video.children[0].getAttribute('src');
+                mainVideo.src = src;
+                let text = video.children[1].innerHTML;
+                title.innerHTML = text;
+            };
+        };
+    });
+
+    
+</script>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/style.css b/style.css
new file mode 100644
index 0000000..ba6c582
--- /dev/null
+++ b/style.css
@@ -0,0 +1,144 @@
+*{
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+    text-transform: capitalize;
+    font-family: Verdana, Geneva, Tahoma, sans-serif;
+    font-weight: normal;
+}
+body{
+    background: #fff;
+}
+.heading{
+    color: dimgrey;
+    font-size: 40px;
+    /*text-align: center;*/
+    padding: 10px;
+}
+
+.container{
+    display: grid;
+    grid-template-columns: 2fr 1fr;
+    gap: 15px;
+    align-items: flex-start;
+    padding: 5px 5%;
+}
+.container .main-video{
+    background: white;
+    border-radius: 5px;
+    padding: 10px;
+}
+.container .main-video video{
+    width: 100%;
+    border-radius: 5px;
+
+}
+.container .main-video video .title{
+    color: grey;
+    font-size: 23px;
+    padding-top: 15px;
+    padding-bottom: 15px;
+}
+
+.container .video-list{
+    background: white;
+    border-radius: 5px;
+    height: 520px;
+    overflow-y:  scroll;
+
+
+}
+.container .video-list .vid video{
+    width: 100%;
+    border-radius: 5px;
+
+}
+
+
+.container .main-video .title{
+    color: grey;
+    font-size: 23px;
+    padding-top: 15px;
+    padding-bottom: 15px;
+}
+
+.container .video-list{
+    background: white;
+    border-radius: 5px;
+    height: 100%;
+    overflow-y: scroll;
+}
+
+.container .video-list::-webkit-scrollbar{
+    width: 7px;
+}
+.container .video-list::-webkit-scrollbar-track{
+    background: white;
+    border-radius: 50px;
+
+}
+
+.container .video-list::-webkit-scrollbar-thumb{
+    background: #ccc;
+    border-radius: 50px;
+    
+}
+.container .video-list .vid video{
+    width: 100px;
+    border-radius: 5px;
+
+}
+
+
+.container .video-list .vid{
+    display: flex;
+    gap: 15px;
+    background: white;
+    border-radius: 5px;
+    margin: 10px;
+    padding: 10px;
+    border: 1px solid rgba(0, 0, 0, .1);
+    cursor: pointer;
+    flex-direction: column;
+}
+.container .video-list .vid:hover{
+    background: white;
+}
+
+.container .video-list .vid.active{
+    background: #ccc;
+}
+.container .video-list .vid.active.title{
+    color: white;
+}
+
+.container .video-list .vid .title{
+    color: grey;
+    font-size: 17px;
+}
+
+.container .video-list .vid video {
+    width: 100%;
+    border-radius: 5px;
+}
+
+@media(max-width:994px){
+    .container{
+        
+        grid-template-columns: 1.5fr 1fr;
+        
+        padding: 10px;
+    }
+
+}
+@media(max-width:778px){
+    .container{
+        
+        grid-template-columns:  1fr;
+        
+        padding: 10px;
+    }
+
+}
+
+
