.marginhover { }
a:link.marginhover {color: black; background: #aaaaaa; text-decoraton: underline}
a:visited.marginhover {color: purple; background: #aaaaaa; text-decoration: underline}
a:active.marginhover {color: black; background: #aaaaaa; text-decoration: underline}
a:hover.marginhover {color: black; background: #cccccc; text-decoration: underline}