table, th {
    border: 5px solid green;
}

th#planets {
    color: white;
    background-image: url(http://www.geek.com/wp-content/uploads/2013/08/planets-590x330.jpg);
    background-position: center;
    background-sice: cover;
}

td#m {
    background-image:  url(http://www.wwu.edu/skywise/planets/mercury.jpg);
    background-position: center;
    background-sice: cover;
    color: darkgray;
    border: 10px solid darkgray;
    font-family: cursive;
}

td#v{
    background-image: url(https://upload.wikimedia.org/wikipedia/commons/8/85/Venus_globe.jpg);
    background-position: center;
    background-sice: cover;
    color: yellow;
    border: 8px solid yellow;
    font-family: fantasy;
}

td#ma{
    background-image: url(http://spaceaim.com/wp-content/uploads/2015/07/mars.jpg);
    background-position: center;
    background-sice: cover;
    color: red;
    border: 6px solid red;
    font-family: inherit;
}

td#j{
    background-image: url(http://nssdc.gsfc.nasa.gov/planetary/image/jupiter_cassini.jpg);
    background-position: center;
    background-sice: cover;
    color: darkorange;
    border: 4px solid darkorange;
    font-family: monospace;
}

td#e{
    background-image: url(http://solarviews.com/raw/earth/bluemarblewest.jpg);
    background-position: center;
    background-sice: cover;
    color: blue;
    border: 12px solid blue;
    font-family: sans-serif;
}

td#s{
    background-image: url(http://nssdc.gsfc.nasa.gov/image/planetary/saturn/saturn.jpg);
    background-position: center;
    background-sice: cover;
    color: goldenrod;
    border: 14px solid goldenrod;
    font-family: serif;
}

td#u{
    background-image: url(http://d1jqu7g1y74ds1.cloudfront.net/wp-content/uploads/2010/06/Hubbles-Uranus-580x450.jpg);
    background-position: center;
    background-sice: cover;
    color: lightblue;
    border: 11px solid lightblue;
    font-family: sans-serif;
    font-weight: bold;
}

td#n{
    background-image: url(http://www.seasky.org/solar-system/assets/images/neptune02_sk12.jpg);
    background-position: center;
    background-sice: cover;
    color: deepskyblue;
    border: 13px solid deepskyblue;
    font-family: sans-serif;
    font-style: oblique;
}

td#p{
    background-image: url(http://i.space.com/images/i/000/048/999/i02/pluto-new-horizons-july-2015.jpg?1437582878);
    background-position: center;
    background-sice: cover;
    color: brown;
    border: 7px solid brown;
    font-family: sans-serif;
    font-style: italic;
}