For Independence Day, a cute and simple outfit for a baby girl could be:

- **White Dress:** A soft, white dress with a heart-shaped design. Look for a dress with a cute heart graphic or heart-shaped embroidery.

- **Green Pajamas:** Pair the dress with green pajamas. Choose a comfortable and coordinating shade of green, perhaps with a simple pattern or solid color.

This combination is festive and adorable while being comfortable for your little one!