Content creation using the Paragraphs module is a completely different approach compared to the "standard" content creation in Drupal. In short: we prepare the components (paragraph type) and then, during the creation of an entry, we select any of the available components.
Adding your own CSS classes to the paragraph. The Classy paragraphs module is a useful tool if you want to give editors a possibility to eg. change the background colour of a given paragraph. Of course, we do not have to limit ourselves to just changing colours. All that CSS offers can be implemented here. Add a linking field to the paragraph.