问题 I am trying to get rid of flickering effect. I am using GTM + Google experiments API code as a GTM tag. I want to adapt Optimize's page hiding snippet in order to use it with Content Experiments. https://support.google.com/360suite/optimize/answer/7100284 <HTML> <HEAD> <!-- Page hiding snippet (recommended) --> <style>.async-hide { opacity: 0 !important} </style> <script>(function(a,s,y,n,c,h,i,d,e){s.className+=' '+y;h.start=1*new Date; h.end=i=function(){s.className=s.className.replace