Generate an SVG as a birthday greeting card illustration. Bold playful cartoon style. Background #FFF8F0. Draw 3 stacked gift box shapes at lower-center in #7C3AED, #F59E0B, #EF4444 — each with ribbon cross lines and a bow shape on top. Add star burst shapes radiating from upper area in bold colors. Scatter confetti dots and diagonal streamer ribbons. Bold solid fills, celebratory energy. No text, no labels, no emoji. Output raw SVG code only starting with <svg.

The image shows a group of colorful gift boxes with bows and ribbons, set against a white background. The boxes are animated, giving the image a lively and festive feel.