list current cat's child cats' posts with nesting

Hi there guys – I’m using some code I found which list the current category’s child categories and their posts within each category. I’m pulling in custom fields from each post. What I want to do is update this code to allow me to style my category titles to differentiate between child categories and child-child categories. So for example, if my categories are like this structure:

• Food

• Fruit

1. Apples
2. Bananas
3. Peaches

• Toys

• Cars

1. Ferraris
2. Porsches

I want to ‘print’ a different li class for my 3rd level categories, like ‘Apples’. My code currently treats all category titles the same, but I want to be able to print something different if it’s a child-child category – like ‘Apples’ – so I can style the title differently. How can I tell in the code if it’s a child-child category? I hope that makes sense, it’s all a bit confusing.

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