Targhette spente o accese, In modifica colori e stili

web a:visited img {filter:alpha(opacity=30);
-moz-opacity: 0.5;
opacity: 0.5}
.web a:link img {filter:alpha(opacity=30);
-moz-opacity: 0.5;
opacity: 0.5}
.web a:hover img {filter:alpha(opacity=100);
-moz-opacity: 1.0;
opacity: 1.0}