.aaa {
    font-size : 12px;
    font-family : Verdana,Arial;
}

.index1_titolo{
font-family: Verdana;
font-size: 18;
padding: 5px 5px 5px 5px;
background-color: #2175bc;
color: #fff;
}                                        
.index1 a{
font-family: Verdana;
font-size: 12;
display: block;
padding: 5px 5px 5px 5px;
background-color: #2175bc;
color: #fff;
text-decoration: none;
width: 100%;
}     
.index1 a:hover{
background-color: #5ba3e0;
color: #fff;
}

.index2_titolo{
font-family: Verdana;
font-size: 18;
padding: 5px 5px 5px 5px;
background-color: #990000;
color: #fff;
}                                        
.index2 a{
font-family: Verdana;
font-size: 12;
display: block;
padding: 5px 5px 5px 5px;
background-color: #990000;
color: #fff;
text-decoration: none;
width: 100%;
}     
.index2 a:hover{
background-color: #CC0000;
color: #fff;
}

.index3_titolo{
font-family: Verdana;
font-size: 18;
padding: 5px 5px 5px 5px;
background-color: #993399;
color: #fff;
}                                        
.index3 a{
font-family: Verdana;
font-size: 12;
display: block;
padding: 5px 5px 5px 5px;
background-color: #993399;
color: #fff;
text-decoration: none;
width: 100%;
}     
.index3 a:hover{
background-color: #CC0099;
color: #fff;
}

.index4_titolo{
font-family: Verdana;
font-size: 18;
padding: 5px 5px 5px 5px;
background-color: #006600;
color: #fff;
}                                        
.index4 a{
font-family: Verdana;
font-size: 12;
display: block;
padding: 5px 5px 5px 5px;
background-color: #006600;
color: #fff;
text-decoration: none;
width: 100%;
}     
.index4 a:hover{
background-color: #008000;
color: #fff;
}