CSS Methodology you should know

A CSS methodology is a set of guidelines for writing modular, reusable and scalable code. Although CSS is an easy language to write, without an agreed-upon convention, the code gets messy almost as fast as it is written.

In the process, CSS methodologies do much more than fix the CSS scalability problem. They make it easier to develop and iterate a design. They make front-end code easier to read and understand, provide ready-made documentation, and make it easier for multiple people to collaborate on a design.

1. Object-oriented CSS

Object-oriented CSS is a CSS methodology developed and promoted by Nicole Sullivan. The focus of OOCSS is the idea of treating page elements as objects, giving all these objects classes, treating objects’ classes as single entities in style sheets, and taking it from there.


<!DOCTYPE html>
.button {
  border: none;
  color: black;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;

.button1 {background-color: red;} 
.button2 {background-color: lightblue;} 

<button class="button button1">Green</button>
<button class="button button2">Blue</button>