.main-wrapper {
    text-align: center;
    margin-top: 3rem;
}

form[name=addNewVideo] {
    background-color: purple;

    position: fixed;

    top: 25vh;
    left: calc((100% - 20vw) / 2);

    height: max-content;
    width: 20vw;
    padding: 2rem;
}

form[name=addNewVideo] input {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
}