define a style in css code example
Example: css how to style a
/*a normal, unvisited link*/
a:link{
color: green;
}
/*a link the user has visited*/
a:visited{
color: purple;
}
/*a link when the user mouses over it*/
a:hover{
color: yellow;
}
/*a link the moment it is clicked*/
a:active{
color: brown;
}