Find javascript that is changing DOM element

Right click on DOM element > Break on > Attributes Modifications

Via #3 in https://elijahmanor.com/blog/7-chrome-tips-developers-designers-may-not-know


you can use :-

document.documentElement.addEventListener('DOMAttrModified', function(e){
  if (e.attrName === 'style') {
    console.log('prevValue: ' + e.prevValue, 'newValue: ' + e.newValue);
  }
}, false);

Have a look at this :-

Event detect when css property changed using Jquery