a  { }
body { color: black; background-color: white; margin: 20px auto 0; }
p {}
a:hover { color: purple; text-decoration: underline; }
a:active {  }
a:link { color: #00f; text-decoration: none; }
h1 { font-size: 3em; font-weight: bold; margin: 0; }
a:visited { color: inherit; text-decoration: none; }