A
{   COLOR: #2222DD; TEXT-DECORATION: none   }

A:hover
{   BACKGROUND-COLOR: #88DD77; }

A:active {
    BACKGROUND-COLOR: #88DD77; 
}
A.odk2
{   COLOR: #2222DD; TEXT-DECORATION: none   }

A:hover.odk2
{   BACKGROUND-COLOR: #CCFFBB; }

A:active.okd2 {
    BACKGROUND-COLOR: #CCFFBB; 
}