CSS Tutorial

By | October 3, 2021

Cascading Style Sheet aka CSS is a style sheet language that is used to describe the presentation of HTML or any other markup language. CSS is also one of the three core programming languages of Web alongside HTML and JavaScript. CSS can only be used to present the HTML document layout, colour and font.

It helps in rendering the HTML document in the browser properly and makes the web-page looks good by providing proper margin, padding, colour etc. Using CSS, we can separate the page content and make it’s more presentable so the user can quickly identify each section of the page.


However, using CSS, we cannot manipulate or edit the HTML document content or elements, but CSS gives us power on how should the content rendered on the browser. And like other computer languages, it also follows some specific set of rules referred to as CSS syntax.

CSS History

Hakon Wium Lie first proposed CSS on October 10 1994. At the time when Hakon introduced CSS Tim Berners-Lee, the founder of World Wide Web (WWW) also working on other style sheet languages. In 1996 World Wide Web Consortium released CSS as the official styling language for the web.

Even after being released in 1996, all the browsers of that time did not give full support to CSS. The first browser which fully supported all the features of CSS was Internet Explorer5.0 which was released in 2000.

CSS Versions

  • Håkon Wium Lie and Bert Bos introduced the first version of CSS on December 17 1996.
  • CSS 2 was introduced in 1998.
  • CSS 3 is the current version of CSS, and unlike CSS1 and 2 it was not introduced as a single version. CSS 3 was released as a superset of CSS 2 which contain new modules which have backward compatibility with the features of CSS2. The first draft of CSS 3 was introduced in 1999. Since than W3C keeps adding new modules in CSS 3, for instance, css3-page released in 2013, css3-background module released in Oct 2017, css3-box in Jul 2018, and so on.

Why Learn CSS?

Every language in Computer Science has its objectives so does CSS. If you are into web-development and web-designing, you need to learn this language. In web development for back-end, we have many alternatives, but in front-end, there are only limited languages we can use.

Right now, for styling, we have only two primary styling languages CSS and XSL (Extensible Stylesheet Language). But for modern styling, CSS is the first choice of developers. Apart from the first choice of developers here are some reasons why you should learn CSS.

  • Create responsive web-pages.
  • For web-designing and development
  • Web Control
  • For other web-languages.

To create responsive web-pages

The responsive web-page adjusts the page content perfectly according to the user’s device. And using the CSS, we can create responsive web pages. These days a user can use any device to access a website. Hence, it’s the job of the developer to make a responsive web-page which automatically adjusts the page content according to the viewport of the user browser.

To become a web-designer and web-developer

If you want to become a web designer or a web developer, then it’s become necessary to learn CSS. Even if you’re going to be a back-end developer, you are supposed to know basic CSS. But for a web-designer, it’s become extremally essential to master this language along with HTML and JavaScript.

Web control

It is a straightforward language, and coding in it feels like you are setting values to elements. Using it, we have full control over the rendering of the HTML content. And it can be used with both HTML and XHTML.

For Other web-languages       

If you are learning any web-development language, then you have to learn this language. It is well integrated with HTML and JavaScript, which means they use CSS and its properties for rendering content.

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