<style>
a:link {
    color: green;
    background-color: transparent;
    text-decoration: none;
}
a:visited {
    color: Black;
    background-color: transparent;
    text-decoration: none;
}
a:hover {
    color: #0166FE;
    background-color: transparent;
    text-decoration: underline;
}
a:active {
    color: #6FADFE;
    background-color: transparent;
    text-decoration: underline;
}
<!--
A:link	{
text-decoration:none;
}
A:visited	{
text-decoration:none;
}
//-->
</style>