*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

body{
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: grey;
}

.container{
  
  height: 500px;
 width : 18%;
    display: flex;   
    background: rgb(238, 236, 236);
}

.container .videos{

    padding: 3px 0 3px 3px;
    display: flex;
border:2px;
    flex-direction: column;
    justify-content: space-between;
}

.container .videos video{
 
    height: 100px;
    margin: 3px;
    object-fit: cover;
    cursor: pointer;
    transition: 0.2s;
}

.container .videos video:nth-child(1){
    margin-top: 0;
}

.container .videos video:hover,
.container .videos .active{
    transform: scale(1.06);
    border: 3px solid blue;
}

.container .main-video{
     height: 500px;
 width : 80%;
    padding: 3px;
}

.container .main-video video{
    width: 75%;
    height: 100%;
    object-fit: cover;
    border: 3px solid blue;
}