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CSS, or Cascading Style Sheets, offers a flexible way to style web content, with styles originating from browser defaults, user preferences, or web designers. These styles can be applied inline, within an HTML document, or through external .css files for broader consistency.
- CSS (Disambiguation)
CSS, or Cascading Style Sheets, is a language used to...
- Cascading Style Sheets
Cascading Style Sheets, or CSS, is a way to change the look...
- CSS (Disambiguation)
- Overview
- Key resources
- Tutorials
- Reference
- Cookbook
- Tools for CSS development
- See also
Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in HTML or XML (including XML dialects such as SVG, MathML or XHTML). CSS describes how elements should be rendered on screen, on paper, in speech, or on other media.
CSS is among the core languages of the open web and is standardized across Web browsers according to W3C specifications. Previously, the development of various parts of CSS specification was done synchronously, which allowed the versioning of the latest recommendations. You might have heard about CSS1, CSS2.1, or even CSS3. There will never be a CSS3 or a CSS4; rather, everything is now CSS without a version number.
CSS Introduction\t
If you're new to web development, be sure to read our CSS basics article to learn what CSS is and how to use it.
CSS Tutorials\t
Our CSS learning area contains a wealth of tutorials to take you from beginner level to proficiency, covering all the fundamentals.
CSS Reference\t
Our exhaustive CSS reference for seasoned Web developers describes every property and concept of CSS.
Our CSS Learning Area features multiple modules that teach CSS from the ground up — no previous knowledge required.
CSS first steps\t
CSS (Cascading Style Sheets) is used to style and layout web pages — for example, to alter the font, color, size, and spacing of your content, split it into multiple columns, or add animations and other decorative features. This module provides a gentle beginning to your path towards CSS mastery with the basics of how it works, what the syntax looks like, and how you can start using it to add styling to HTML.
CSS building blocks\t
This module carries on where CSS first steps left off — now you've gained familiarity with the language and its syntax, and got some basic experience with using it, it's time to dive a bit deeper. This module looks at the cascade and inheritance, all the selector types we have available, units, sizing, styling backgrounds and borders, debugging, and lots more.
The aim here is to provide you with a toolkit for writing competent CSS and help you understand all the essential theory, before moving on to more specific disciplines like text styling and CSS layout.
•CSS reference: This exhaustive reference for seasoned Web developers describes every property and concept of CSS.
•CSS key concepts:
•The syntax and forms of the language
•Specificity, inheritance, and the Cascade
•CSS units and values and functional notations
•Box model and margin collapse
The CSS layout cookbook aims to bring together recipes for common layout patterns, things you might need to implement in your sites. In addition to providing code you can use as a starting point in your projects, these recipes highlight the different ways layout specifications can be used and the choices you can make as a developer.
•You can use the W3C CSS Validation Service to check if your CSS is valid. This is an invaluable debugging tool.
•Firefox Developer Tools lets you view and edit a page's live CSS via the Inspector and Style Editor tools.
•CSS demos: Get a creative boost by exploring examples of the latest CSS technologies in action.
•Web languages to which CSS is often applied: HTML, SVG, MathML, XHTML, and XML.
Code sample
@viewport {min-height: 200px;}The CSS saga. The saga of CSS starts in 1994. Håkon Wium Lie works at CERN – the cradle of the Web – and the Web is starting to be used as a platform for electronic publishing. One crucial part of a publishing platform is missing, however: There is no way to style documents. For example, there is no way to describe a newspaper-like layout ...
Jan 1, 2024 · CSS is a rule-based language — you define the rules by specifying groups of styles that should be applied to particular elements or groups of elements on your web page. For example, you can decide to have the main heading on your page to be shown as large red text.
Mar 3, 2023 · Cascading Style Sheets. This book is a guide to Cascading Style Sheets (CSS), a technique widely used in web pages including Wikipedia to describe their visual style and appearance. CSS can take HTML to new places creatively and functionally. Once you learn how to style mark-up, you can additionally learn JavaScript functions that make dynamic ...
2 days ago · What is CSS? Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g., fonts, colors, spacing) to Web documents. These pages contain information on how to learn and use CSS and on available software. They also contain news from the CSS working group.
