VS code extension for autocomplete HTML class name in CSS file

I am trying to find a VS code extension for autocomplete HTML class and id names in CSS or SCSS files. There are many extensions for autocomplete CSS class names in HTML file i.e HTML CSS Support but I want autocompletion in CSS files. PHP Storm IDE has this built-in feature but I have not found it in VS code yet. Please let me know if you know anything about it. Thanks