A regex website

So, here we are. We'll code a website that stores regular expressions so that we'll be able to play with them a little bit.

Note

Before we proceed creating the project, I'd like to spend a word about CSS. CSS (Cascading Style Sheets) are files in which we specify how the various elements on an HTML page look. You can set all sorts of properties such as shape, size, color, margins, borders, fonts, and so on. In this project, I have tried my best to achieve a decent result on the pages, but I'm neither a frontend developer nor a designer, so please don't pay too much attention to how things look. Try and focus on how they work.

Setting up Django

On the Django website (https://www.djangoproject.com/), you can follow the tutorial, which gives you a pretty good idea of Django's capabilities. If you want, you can follow that tutorial first and then come back to this example. So, first things first; let's install Django in your virtual environment:

$ pip install django

When this command...