Ciao Vincenzo,
manca in pezzo per il link visitati:
.art-PostHeader a:visited{
color:#636C60;
font-family:Arial,Helvetica,Sans-Serif;
font-size:15px;
font-style:normal;
font-variant:normal;
font-weight:bold;
letter-spacing:normal;
line-height:inherit;
text-align:left;
text-decoration:none;
text-indent:0;
text-transform:none;
word-spacing:normal;
}
Ciao