a:link {
color: blue;
background-color: transparent;
text-decoration: none;
}
a:visited {
color: purple;
background-color: transparent;
text-decoration: none;
}
a:hover {
color: red;
background-color: transparent;
text-decoration: underline;
}
a:active {
color: yellow;
background-color: transparent;
text-decoration: underline;
}
