edit.css

.Montserrat {
    font-family: 'Montserrat', 'sans-serif';
}

h1 {
    font-size: 72px;
}

.box {
    display: flex;
    align-items: center;
}

.overlay {  
    justify-content: center;
    align-items: center;
    position: absolute;
    z-index: 2;
    opacity: 0;
    background: rgba(39, 42, 43, 0.8);
    transition: opacity 200ms ease-in-out;
    border-radius: 4px;
    margin: -15px 0 0 -15px;
}