This code snippet is for a website that includes a button that appears when the user scrolls down 20px from the top of the document. When the button is clicked, it scrolls the page to the top. The code also includes tracking scripts for various analytics platforms. The rest of the text is promotional content for a service called OurBabyAI, which generates AI-generated photos of future babies based on parents' photos or 4D ultrasound scans. The content includes information on how to use the service, customer testimonials, frequently asked questions, and pricing details.