Hello there, Nick.   As you already found out, toggleClass will toggle a class every time the ScrollTrigger changes its state from active to inactive and vice versa, i.e. on each of enter/leave/enterBack/leaveBack.   So if you only wanted to toggle a class on certain events, you'd have to use the callback system - e.g. add the class to the element onEnter and remove it again onLeaveBack. Something like this:   See the Pen jOYREob by akapowl (@aka
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