* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

section {
    position: relative;
    width: 100%;
    height: 100vh;
}

section video {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

section .navigation {
    position: absolute;
    padding: 1px;
    bottom: 5%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100px;
    width: 150px;
}

section .navigation li {
    list-style: none;
    cursor: pointer;
    border-radius: 4px;
    margin: 1px;
    border: 1px solid #fff;
    opacity: 0.7;
}

section .navigation li img {
    transition: 0.5s;
}

section .navigation li img:hover {
    height: 150px;
    width: 200px;
    border: 2px solid #fff;
}