app.css

/*
Set the background to 'black', because it represents space.
*/
body {
    background: black;
}

.title-text {
    fill: white;
    font-size: 34px;
    text-anchor: middle;    
}

/* 
Style the visual the represents the earth.
*/
.earth {
    fill: #01499D;
}

/*
Color code the different sizes of space junk.
*/

.junk.SMALL {
    fill: yellow;
}

.junk.MEDIUM {
    fill: orange;
}

.junk.LARGE {
    fill: red;
}

.hover-title {
    font-weight: bold;
    font-size: 20px;
}

.hover-text {
    fill: white;
    text-anchor: middle;
    font-size: 16px;
}