style.css

body {
        background:black;
}
nav {
        width:300px;
        height:600px;
        margin-left:5%;
        margin-top:5%;
        float:left;
}
article {
        width:750px;
        height:600px;
        margin-left:1%;
        margin-top:5%;
        float:left;
}
#rednav {
        border:1px solid #FF0000;
}
#redart {
        border:1px solid #FF0000;
        background:url(https://images.alphacoders.com/254/25401.jpg);
        background-size:cover;
}
#greennav {
        border:1px solid #00FF00;
}
#greenart {
        border:1px solid #00FF00;
        background:url(http://www.chrismakell.com/wp-content/uploads/2015/01/light-green-abstract-background-hd-images-3.jpg);
        background-size:cover;
}
#bluenav {
        border:1px solid #0000FF;
}
#blueart {
        border:1px solid #0000FF;
        background:url(http://eskipaper.com/images/blue-abstract-10.jpg);
        background-size:cover;
}
.redbutton {
        background:#FF0000;
        box-shadow:3px 3px 3px #FFFFFF;
        border:0;
}
.greenbutton {
        background:#00FF00;
        box-shadow:3px 3px 3px #FFFFFF;
        border:0;
}
.bluebutton {
        background:#0000FF;
        box-shadow:3px 3px 3px #FFFFFF;
        border:0;
}
button {
        margin:30px;
        width:240px;
        height:140px;
}
button:hover {
        background:#CCCC00;
}
a {
        text-decoration:none;
        color:white;
}
a.normal {
        font-size:20px;
        padding-right:20px;
        text-decoration:underline;
}
h1 {
        color:white;
        margin-top:2%;
        text-align:center;
        font-size:50px;
        font-family:Impact, Charcoal, sans-serif;
}
p {
        color:white;
        padding:30px;
        font-size:33px;
        font-style:italic;
}
h4 {
        color:white;
        margin-top:4%;
        text-align:center;
        font-size:35px;
        font-weight:800;
        font-variant:small-caps;
}
.redh {
        text-shadow:2px 2px 2px #FF0000;
}
.greenh {
        text-shadow:2px 2px 2px #00FF00;
}
.blueh {
        text-shadow:2px 2px 2px #0000FF;
}