html {
    background-color: black;
    display: grid;
    flex-direction: column;
    place-items: center
}

.x-container {
    width: 40vw;
    height: 6vh;
    margin-top: 30vh;
    padding-left: 3vh;
    padding-right: 3vh;

    border-radius: 10px;
    border-width: 0px;
    border-color: transparent;

    font-size: 15px;
    font-family: monospace;

    text-align: center;

    background-color: black;
    color: white;

    display: grid;
    flex-direction: column;
    place-items: center;

    transition: all 0.4s ease;
}

.x-container:hover {
    color: rgb(0, 0, 0);
    background-color: white;
}

#x {
    align-self: center;
}