Intro to HTML CSS: Making webpages

CSS3 is the version of CSS (Cascading Style Sheets) that replaces CSS2. It introduces new selectors and properties that allow for more flexibility with page layout and presentation. Some updates, such as the box-shadow property (which allows an element drop shadow), allow visual effects to be applied without creating special images. This further decouples the styling from the HTML document and makes it possible to restyle multiple documents by simply editing a shared external CSS file. For example, headings (h1 elements), sub-headings (h2), sub-sub-headings (h3), etc., are defined structurally using HTML.

As we have mentioned before, CSS is a language for specifying how documents are presented to users — how they are styled, laid out, etc. However, the web would be a boring place if all websites looked like that. Using CSS, you can control exactly how HTML elements look in the browser, presenting your markup using whatever design you like.

Tools for CSS development

Using a text editor, paste the three lines of CSS (above) into a new file. Save the file as style.css in a directory named styles. It increases the standards and overall look of the website that makes it easier for the user to interact with it. A website can be made without CSS, as styling is MUST since no user would want to interact with a dull and shabby website. So for knowing Web Development, learning CSS is mandatory. CSS (Cascading Style Sheets) is used to styles web pages.

HTML elements are often used interchangeably with tags, but there’s a small difference between the two. An element is a combination of the opening and closing tag, and then the content between them. CSS is created and maintained through a group of people within the W3C called the CSS Working Group. The CSS Working Group creates documents called specifications.

Why use CSS

CSS (Cascading Style Sheets) allows you to create great-looking web pages, but how does it work under the hood? This article explains what CSS is with a simple syntax example and also covers some key terms about why do we need cascading style sheets the language. The Wix website builder offers a complete solution from enterprise-grade infrastructure and business features to advanced SEO and marketing tools–enabling anyone to create and grow online.

In the Introduction to HTML module, we covered what HTML is and how it is used to mark up documents. Headings will look larger than regular text, paragraphs break onto a new line and have space between them. Links are colored and underlined to distinguish them from the rest of the text. External CSS involves creating a separate CSS file with all the styles and linking it to the HTML file using the “ element in the “ section. This approach promotes the separation of concerns and allows you to apply the same styles to multiple HTML files.

Short for chirp spread spectrum, CSS is a spread spectrum technique that transmits information in periodic bursts of variable frequency. These chirps are highly resistant to channel noise and multipath degradation, making them ideal for low-power, low-bitrate, long-distance communication. If you named the CSS file example.css, and it’s in the same directory as the HTML file it’s being loaded from, the following line would link the CSS file.

css meaning in computer

From the pseudo-code you can see it quite looks like a waterfall of several cascades. To solve this problem, the World Wide Web Consortium (W3C) created CSS. Use our color picker to find different RGB, HEX and HSL colors. The goal of is to explain computer terminology in a way that is easy to understand. We strive for simplicity and accuracy with every definition we publish. If you have feedback about this definition or would like to suggest a new technical term, please contact us.

We’ll look at this process more in the lesson How CSS works. It is unusual for all browsers to implement a feature at the same time, and so there is usually a gap where you can use some part of CSS in some browsers and not in others. For this reason, being able to check implementation status is useful. Many experienced developers would much rather refer to MDN documentation or other tutorials. Nevertheless, it is worth knowing that these specs exist and understanding the relationship between the CSS you are using, the browser support (see below), and the specs. A CSS stylesheet will contain many such rules, written one after the other.

css meaning in computer

Semantics has been an integral part of HTML since its inception in the early 90s. But it never gained particular relevance until the late 90s when CSS started working in most browsers. Semantic HTML means that your HTML tags convey the actual meaning of what they are used for. Tutorials Point is a leading Ed Tech company striving to provide the best learning material on technical and non-technical subjects.