Swarup Kumar

I am new to learn in GSAP , Can any one help me to solve this issue, I want to start my light when my fan start, Both need to be same scroll start and scroll end. Here is my code gsap.registerPlugin(ScrollTrigger); gsap.to("#fan", { scrollTrigger: { trigger: "#fan", toggleClass: 'active', scrub: true, start:"top 85%", //when top of fan passes 75% viewport height end:"bottom 45%", //when bottom of fan passes 25% viewport height toggleActions:"play pause reverse pause" }, perspectiveOrigin: "center 100vh", ease: "none" }); gsap.to(".lamp", { scrollTrigger: { trigger: ".lamp", endTrigger: ".footer", toggleClass: 'lampMove', scrub: 1, markers: true, start:"top top-=850", //when top of fan passes 75% viewport height end:"bottom top", //when bottom of fan passes 25% viewport height toggleActions:"play pause reverse pause" }, });