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CodePen is an online community for testing and showcasing user-created HTML, CSS and JavaScript code snippets. It functions as an online code editor and open-source learning environment, where developers can create code snippets, called "pens," and test them.
W3Schools is a freemium educational website for learning coding online. [1] [2] Initially released in 1998, it derives its name from the World Wide Web but is not affiliated with the W3 Consortium. [3] [4] [unreliable source] W3Schools offers courses covering many aspects of web development. [5] W3Schools also publishes free HTML templates.
Android Inc. was founded in Palo Alto, California, in October 2003 by Andy Rubin and Chris White, with Rich Miner and Nick Sears [13] [14] joining later. Rubin and White started out build an Operating System for digital cameras viz FotoFrame. The company name was changed to Android as Rubin already owned the domain name android.com.
Overhead power lines are easiest to diagnose since the problem is usually obvious, e.g., a tree has fallen across the line, or a utility pole is broken and the conductors are lying on the ground. Locating faults in a cable system can be done either with the circuit de-energized, or in some cases, with the circuit under power.
In September 1997, Oskoboiny began working for the W3C, and on December 18, 1997, the W3C announced its W3C HTML Validator based upon his works. [4] In November 2008, the W3C released the validator.nu HTML5 engine and the ability to check documents for conformance to HTML5.
In the Microsoft Office 365 and Google online produces, a similar icon consisting of three rows of three squares (⋮⋮⋮) pops up an array of icons instead of a menu, and is referred to as a waffle button. [13] Clicking or pressing these buttons results in a vertical menu being revealed, generally the same as a one-item menu or tab bar. [14]
Twitter, officially known as X since 2023, is a social networking service.It is one of the world's largest social media platforms and one of the most-visited websites. [4] [5] Users can share short text messages, images, and videos in short posts commonly known as "tweets" (officially "posts") and like other users' content. [6]
The following other wikis use this file: Usage on ar.wikipedia.org دبليو ثري سكولز; Usage on as.wikipedia.org ডব্লিউ থ্ৰী স্কুলচ্