Simple GSAP ScrollTrigger Test

<script>
;( function() {

  // wait until gsap & ScrollTrigger available
  let chck_if_gsap_loaded = setInterval( function() {
    
    if( window.gsap && window.ScrollTrigger ) {
      
      // register scrolTrigger
      gsap.registerPlugin( ScrollTrigger );

      // ... do your thing
      my_stuff();

      // clear interval
      clearInterval( chck_if_gsap_loaded ); 
      
    }
    
  }, 500 );
  
  function my_stuff() {
  
    
  	
  }
  
} )();
</script>