body {background-color: #AACFD0;}

header {background-color: white;
text-align:center;
}

h2 {text-align: center;}
article {margin-left: 20px;
margin-right: 20px;
}


.column-1 {background-color: white;
    display: inline-block;
    float:left;
    width: 46%;
    margin-left: 2%;
    margin-bottom: 2%;
}

.column-2 {background-color: white;
    display: inline-block;
    float:right;
    width: 46%;
    margin-right: 2%;
    margin-bottom: 2%;
}

footer {background-color: white;
bottom: 0;
clear:both;
    text-align:center;
}

Add CSS to GPS 2.1 challenge
Add CSS to GPS 2.1 challenge
