Liga Manager Online - php change

Hi there.
I’m using LMO. There is one feature I would like to have - table’s alternated background color.

Asked around in their forum and someone suggested me CSS3. Well it works, the problem is that I have a large number of visitors not using IE latest versions so, they can’t see this.

This is what I’m using in a css style sheet:

.lmoInner tr:nth-child(odd) {
background-color:#eee;
}

Found some php code’s in forums. Can I use it? And how?

Thanks in advance.

Not sure how LMO puts out it’s code/what you can edit, but…
Define a CSS class for row0 and row1,
echo “<tr class='row”.($curr % 2)."'> …
$curr++;