Explain like I only speak in plain English

CSS is like make up for a website. CSS allows you to specify the exact styling at the exact place on your website, so you can make it look the way you want it. You can specify the positions, sizes, spacing, color, backgrounds, font styles of any content.

A web page's content is defined using HTML. CSS is applied on to the HTML to give it styling. Together, HTML & CSS define your website's look and feel.

Explain like I'm a total nerd

CSS stands for Cascading Style Sheets, a style sheet language used for describing the presentation of a document written in a markup language like HTML. Separation of formatting and content also makes it feasible to present the same markup page in different styles for different rendering methods. CSS has a simple syntax and uses a number of English keywords to specify the names of various style properties.

CSS, alongside HTML and JavaScript, are a cornerstone technology of the internet.

Explain like I'm an artist

Different CSS can create drastically different looking websites even when the HTML stays the same.

Yes. All of the websites above have the same HTML with different CSS. If HTML is the canvas, then CSS is the paintbrush with your creativity.

Explain like I like videos

Explain like I already know it

Bootstrap is one of the most popular frameworks for HTML and CSS. It provides a bunch of style defaults and a flexible grid for us to scaffold websites very quickly.

CSS flexbox and CSS grid are the hottest topics this year. Bootstrap 4 migrated its grid structure to use flexbox due to its popularity and flexibility.

CSS grid allows us to create grid structure easily with pure HTML and CSS. There is a movement in the industry to transition to flexbox and CSS grid and not use any frameworks.

HTML

HTML is like a newspaper layout but for websites. A layout is a grid system for us to place content. Instead of using pen and paper to draw the grid, we follow HTML's standards to define the grid.

Bootstrap is a CSS framework that lets front-end web engineers add style structure to websites very quickly. Bootstrap provides a set of standards in spacing, typography, color, interactive behaviors, and more.