body {
    background-color: rgb(35, 35, 35);
    display: flex;
    justify-content: center;
    align-items: center;
}

#login-btn {
    background-color: rgb(35, 35, 35);
    border: none;
}

#login-btn img {
    filter: invert(100%);
    margin-top: 125px;
}