*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.container{
    width: 100%;
    height: 100vh;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container .slider{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}


.container ul{
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 20;
}

.container ul li{
    list-style: none;
    cursor: pointer;
    margin: 10px;
}


.container ul li video{
    width: 200px;
    transition: all 0.3s;
}
.container ul li video:hover{
    transform: scale(1.1);
}

video{
    width: 100%;
    height: 100%;
}