body {
    background-color: #000;
    color: #fff;
    font-family: "Arial", sans-serif;
    margin: 0;
    padding: 0;
    /* height: 100vh; */
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

@media (max-width: 768px) {
    #video-mobile {
        display: block;
    }
    #video-desktop {
        display: none;
    }
}

@media (min-width: 769px) {
    #video-mobile {
        display: none;
    }
    #video-desktop {
        display: block;
    }
}