Hello! I've been looking for a while and I find several things, but for what I specifically want, no. In my Tumblr blog, I want a border around the posts with approximately 5px, whose color changes based on the scroll position. I want it to be faded and so have many colors. Should I create a div for the right border? But how and what css or javascript do I use to make the "animation"? Thank you and I apologize for being so mean.