I saw a page design which is made using GSAP, theirs a SVG image was masked on scroll how this is done ? Please see the website : https://www.accenture.com/in-en   I have added code-pen, instated of the circle I want to add the XG svg for Masking.       See the Pen bGmjvMJ by Sashikanta-Nayak (@Sashikanta-Nayak) on CodePen