All languages have a basic vocabulary that is used by native speakers and even tourists who want to order a meal or ask for directions. Advanced learners or native speakers possess a broader and richer vocabulary that makes their speech more exquisite and elaborate. Likewise, HTML is the plain part of any website, while CSS is its beautiful companion.

CSS — Cascading Style Sheets — is a language that web developers use to decorate HTML elements displayed on a screen. Styles are usually saved in separate external CSS files.