html, body {
background-image: none;
background-color: #000;
}

header{
text-align: center;
color: #fff;
}

main, aside{
background-color: #000;
color: #fff;
}

/*hyperlinks*/
a {
color:#f00;
text-decoration: underline;
}

a:hover {
color:#ff0;
text-decoration: none;
}

hr{
border-bottom: 1px solid #fff;
}