*{
    font-size: 1.25rem;
    font-family:    --apple-system,
                    BlinkMacSystemFont,
                    'Segoe UI',
                    Roboto,
                    Helvetica,
                    Arial,
                    sans-serif,
                    'Apple Color Emoji',
                    'Segoe UI Emoji',
                    'Segoe UI Symbol';
    word-wrap: break-word;
    color: #222;
    user-select: none
}

body{
    background-color: #1a3497;
    text-align: center;
    padding: 4rem;
    font-weight: 300;
    color: #fff;
}

.numbers{
    position: absolute;
    top: 0;
    left: 0;
    z-index: -100;
    width: 100%;
    height: 100%;
    background: url(backdrop.jpg);
}
.numbers svg{
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 5px 5px rgba(0, 0, 0, 0.5));
    display: none;
}

.show{
    fill: #809aff;
    opacity: .4;
}

.hide{
    opacity: 0;
}

h1{
    font-size: 3rem;
    color: #fff;
    text-shadow: 0 5px 5px rgba(0, 0, 0, .5);
    font-weight: 600;
    line-height: 3rem;
    margin: 0 0 3rem 0;
}

#runGame{
    color: #000;
    background-color: #fff;
    border: 0;
    font-size: 1.5rem;
    font-weight: 300;
    padding: .5rem 2rem .65rem;
    transition: color 200ms, background-color 200ms, opacity 1s;
    transition-timing-function: ease;
    border-radius: .25rem;
    box-shadow: 0 5px 5px rgba(0, 0, 0, .5);

}

#runGame:hover{
    color: #fff;
    background-color: red;
    border: 0;
}

#runGame:active{
    opacity: 0;
}

#runGame:visited{
    opacity: 1;
}