Matt, this was a while ago. I’m guessing you probably already figured this one out? I think it’s just an issue of where the class and styles are being applied. Since the JS snippet adds the class to the item(which is associated with the tr element), your css selector should say tr.highlightLaterather than tr .highlightLate (the highlightLate class applied to the tr rather than the child of the tr). As for manually adding the style, the style should actually be applied to each td that is a child of the trrather than the tr itself. Just for future reference! 
