With the eventual phasing out of Flash on Chrome and Firefox coming sooner rather than later, I've realized that I need to prioritize the migration of my site's Flash files to HTML5. My partner and I made use of the alpha channel present in SWF files, which allowed us to apply customized backgrounds behind FLVs (allowing our users to enjoy a great interactive experience in our SWFs). We'd like to continue using Greensock products to allow us to more easily present these interactive elements to our users (as we currently use the Actionscript library of GSAP to achieve our goals). My main question at this point is whether there's a GSAP or related Greensock product that will allow us to achieve background transparency when working to migrate our site's more interactive elements from Flash to HTML5. The transparency/alpha channel is a hard requirement for our site needs in terms of what to migrate to. Thank you in advance for any help anyone can offer on this question.