h1, h2, h3, p
{text-align:center}

body {
font-family: arial;
}

/* unvisited link */
a:link {
    color: blue;
}

/* visited link */
a:visited {
    color: red;
}

/* hover link */
a:hover {
    color: orange;
}

/* selected link */
a:active {
    color: green;
}