[melky]

bio,

<style>div:hover { color:red; }</style>
<div id="a">LOL</div>
<script>
var el = document.getElementById('a');
var style = window.getComputedStyle(el, 'hover');
var property;

for (var i = 0, b = style.length; i < b; i += 1) {
    property = style[i];
    document.write(property + " : " +  style.getPropertyValue(property) + ";<br>");
}
</script>