Progress Bar animation on scroll?

Question

JavaScript

https://jsfiddle.net/kimmobrunfeldt/mxjj6jom/ There is such a progress bar, everything is super, the only thing I have is in the middle of the page. I need the animation to work when I scroll to the block I need. Thanks

Answer 1

Hang on the scroll event of the window object, compare window.scrollTop with element.offsetTop and, if they are equal, start the animation.