1silversnow1

If you use webpack with SCSS or LESS, you need extract CSS select string with ID that webpack added. For the sake of the example: I have selector: #contacts-wrapper .animated-btn:before So, webpack compile it with particular ID in something like: #contacts-wrapper .animated-btn[_v-5061616a]:before You can see it in dev tools. Therefore you need write in code this way: CSSRulePlugin.getRule('#contacts-wrapper .animated-btn[_v-5061616a]:before')