Edit This Code:
<!DOCTYPE html>
<html>
<head>
<style>
a:link {
    background-color: yellow;
}


a:visited {
    background-color: cyan;
}


a:hover {
    background-color: lightgreen;
}


a:active {
    background-color: hotpink;
}

</style>
</head>
<body>

<p><b><a href="default.asp.html" target="_blank">This is a link</a></b></p>
<p><b>Note:</b> a:hover MUST come after a:link and a:visited in the CSS definition in order to be effective.</p>
<p><b>Note:</b> a:active MUST come after a:hover in the CSS definition in order to be effective.</p>

</body>
</html>


Result:
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