I have following css code in a html file:

<style>
.myClass { color:red; }
</style>

How can I extract the value of the property "color" from the class "myClass"?

Pseudo-code (which of course doesn't work), so you get the idea:

<input type="button" onclick"alert('The CSS color is '+document.style.myClass.color)">


Thanks btw!