* {
  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: cornflowerblue;
}

.container {
  width: 1100px;
  height: 480px;
  display: flex;
  background: rgb(238, 236, 236);
}

.container .videos {
  width: 20%;
  padding: 10px 0 10px 10px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.container .videos video {
  width: 95%;
  height: 100px;
  margin: 10px;
  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 {
  width: 80%;
  padding: 10px;
}

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