If you include two stylesheets and there’s a rule with the same specificity in each, the one included last wins. I do of course make sure to tell them that it’s not a problem for the style sheets to be fighting each other, that’s the way the language was designed. Instead of versioning the CSS specification, W3C now periodically takes a snapshot of the latest stable state of the CSS specification and individual modules progress. CSS modules now have version numbers, or levels, such as CSS Color Module Level 5.

HTML element was not designed to have tags that would help format the page. You were only supposed to write the markup for the web page. “Cascading” refers to the rules that govern how selectors are prioritized to change a page’s appearance. This is a very important feature, since a complex website can have thousands of CSS rules. A thistle background color and paragraphs with 20 point, medium blue font will now be applied to this single page.

External Style Sheet

CSS describes how elements should be rendered on screen, on paper, in speech, or on other media. Modern web pages are viewable on multiple devices with variously sized screens and layouts. Additionally, most common laptop and desktop computers allow windows that software and browsers launch to be reshaped into various sizes. This resizing posed a challenge for CSS developers and caused errors in layout and font placement until the development of responsive web design.

CSS lets you have multiple styles on one HTML page, therefore making the customization possibilities almost endless. Nowadays, this is becoming more a necessity than a commodity. You might have seen a website that fails to load completely and has a white why do we need cascading style sheets background color with most of the text being blue and black. This means that the CSS part of the web page didn’t load correctly or it doesn’t exist altogether. Would cause one specific headline on a single .html page to appear in violet, 40 point font.

Responsive Web Design

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 https://deveducation.com/ was done synchronously, which allowed the versioning of the latest recommendations. There will never be a CSS3 or a CSS4; rather, everything is now CSS without a version number.

• HTML, or Hypertext Markup Language, is a markup language for the web that defines the structure of web pages.
• CSS is used along with HTML and JavaScript in most websites to create user interfaces for web applications and user interfaces for many mobile applications.
• It is a style sheet language which is used to describe the look and formatting of a document written in markup language.
• CSS declaration always ends with a semicolon, and declaration blocks are surrounded by curly braces.
• This means web developers had to separately describe the background color, font size, alignments, etc.
• CSS3 became a W3C recommendation in June 2012 and builds on older versions CSS.

These same basic principles can be applied to change font sizes, background colors, margin indentations, and more on your web page by choosing the specific selector. Properties are things like font size, color, and margins, while values are the settings for those properties, and you can change these by applying changes to the selector. For example, “background-position,” “border-color,” “border-style,” and “border-width, “and “text-align” are properties and “top,” “red,” “dotted,” “thick,” and “left” are values, respectively. With the basics of the CSS language covered, the next CSS topic for you to concentrate on is styling text — one of the most common things you’ll do with CSS.