Why doesn't the code work?
When scrolling to the "FIRE" heading, the class "_active" should be assigned to it. But for some reason this does not happen. Tell me what's wrong:
https: //codepen.io/5dc8b3/pen/WNxpjPy? editors = 1111 \ < / a>
Example from here:
To place the code, please use CodePen or similar tool. Thanks you!