body {
    background-repeat: no-repeat;
    background-position-x: center;
    background-size: contain;
    background-attachment: fixed;
    background-color: black;
    height: 100%;
    overflow-y: auto;
    min-height: 100vh;
    flex-direction: column;
    display: flex;
}

header {
    color: aliceblue;
    text-align: center;
}

main {
    flex: 1;
}

.navbar__container {
    color: blueviolet;
    text-align: center;
}

footer {
    clear: both;
    background-image: url(./images/element5.jpg);
    position: relative;
    height: 100px;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}

#flatscreen {
    width: 100vw;
    height: 100vh;
    object-fit: contain;
}

button {
    background-color: transparent;
    border: none;
    color: transparent;
    padding: 15px 200px;
    text-align: center;
    font-size: 48px;
    cursor: pointer;
    transition-duration: 0.4s;
}

button:hover {
    color: black;
    background-color: grey;
}