Assign style to class not ID

What I'm trying to achieve is whenever the "block" inside of the canvas is edited the style isn't added to an #id but instead added to a class. My logic is to take the current ID that is used - the random string and remove it as the ID and make it a class and then assign styles to that class instead of the ID, yes it'll result in lots of classes but it'll mean I won't have issues with ID's on the frontend. I can't seem to find how to do this though, whenever I do it on: editor.on('component:update', component => {}) It just doesn't work. The ID is always undefined. component.getAttributes()['...