CSS: Cascading Style Sheets MDN

From its humble beginnings to its current role in web development, CSS has come a long way. As we look toward the future, CSS4 promises to provide web designers with even more tools and possibilities, ensuring that the history of CSS continues to evolve and shape the web of tomorrow. HTML and CSS are used for ease of creation of desirable web documents. After comparing HTML vs CSS over different factors, it can be concluded that both the language is necessary for creating attractive web pages. DOCTYPE in the first line above tells the browser what type of document it is looking at.

All modern browsers display HTML content by default in pretty much the same way. Cascading Style Sheets — or CSS — is the first technology you should what does css do for a web page start learning after HTML. While HTML is used to define the structure and semantics of your content, CSS is used to style it and lay it out.

What is CSS

It is worth remembering however that in a real site, you want to ensure that visitors know that a link is a link. Leaving the underline in place can be an important clue for people to realize that some text inside a paragraph can be clicked on — this is the behavior they are used to. As with everything in CSS, there is the potential to make the document less accessible with your changes — we will aim to highlight potential pitfalls in appropriate places.

The very first thing we need to do is to tell the HTML document that we have some CSS rules we want it to use. Change the color code to the color you chose in What will my website look like?. Using a text editor, paste the three lines https://deveducation.com/ of CSS (above) into a new file. Save the file as style.css in a directory named styles. You should learn the basics of HTML before attempting any CSS. We recommend that you work through our Introduction to HTML module first.


CSS is a style sheet language responsible for the presentation of documents written in a markup language. Whether you want headings, lists, images, or links, HTML can do all of that. HTML (HyperText Markup Language) is the code that is used to structure a web page and its content. For example, content could be structured within a set of paragraphs, a list of bulleted points, or using images and data tables. As the title suggests, this article will give you a basic understanding of HTML and its functions.

what is css in html

With CSS you can set the colour and background of your elements, as well as the typeface, margins, spacing, padding and so much more. You can select a single or multiple web elements and specify how you want them to look or be positioned. CSS stands for Cascading Style Sheets, and you use it to improve the appearance of a web page.

In our example, we set the id attributes to all of the three span elements. This will help us access them from our JavaScript as you will see later. You can also add attributes to these elements which you can use to identify the elements and access them from other places in the site. To use inline styles, add the style attribute to the relevant element. You could remove the underline from all states of a link.

what is css in html

External style sheets can be referenced with a full URL or with a path relative to the current web page. The CSS font-family property defines the font to be used. The CSS color property defines the text color to be used. In conclusion, the history of CSS is a testament to the ever-changing nature of the web. Exploring the advantages and disadvantages of CSS helps web developers make informed design choices.

what is css in html

The browser support status is shown on every MDN CSS property page in a table named „Browser compatibility“. Consult the information in that table to check if the property can be used on your website. For an example, see the browser compatibility table for the CSS font-family property. You can read more about file paths in the chapter HTML
File Paths. It can control the layout of multiple
web pages all at once. Use our color picker to find different RGB, HEX and HSL colors.

  • But this data has to be arranged and formatted into a form that’s understandable by end-users who have a wide range of technical experiences and abilities.
  • The third line is the head section, and below it, you can see the title tag.
  • This separation of content and style not only improved the quality of web design but also made it easier to maintain and update websites.
  • We’ll look at this process more in the lesson How CSS works.
  • DOCTYPE in the first line above tells the browser what type of document it is looking at.

In this article, we will take a simple HTML document and apply CSS to it, learning some practical things about the language along the way. The style definitions are normally saved in external .css files. The main entry point for CSS documentation on MDN, where you’ll find detailed reference documentation for all features of the CSS language.