"Create a cute 1950s retro banner for a Wix website. The banner should feature pastel colors, playful fonts, and vintage graphics. Think of classic diner aesthetics, cheerful housewives, and mid-century modern design elements. The dimensions should be 1200x300 pixels. The banner should convey a sense of nostalgia and charm, with elements like polka dots, gingham patterns, and smiling cartoon characters. Text: 'Welcome to Our Retro Haven!'" --style raw