css how to style a

CSS
/*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;
}
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