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  2. CodePen - Wikipedia

    en.wikipedia.org/wiki/CodePen

    CodePen. 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. It was founded in 2012 by full-stack developers Alex Vazquez and Tim Sabat ...

  3. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

  4. Online integrated development environment - Wikipedia

    en.wikipedia.org/wiki/Online_integrated...

    An online integrated development environment, [1] also known as a web IDE[2] or cloud IDE, [3] is an integrated development environment that can be accessed from a web browser. Online IDEs can be used without downloads or installation, instead operating fully within modern web browsers such as Firefox, Google Chrome or Microsoft Edge.

  5. Pigpen cipher - Wikipedia

    en.wikipedia.org/wiki/Pigpen_cipher

    The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1]The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid.

  6. Researchers don’t yet know what causes Schmorl’s nodes, but it may be due to the following: weak intervertebral discs. excessive pressure applied on the discs. an autoimmune condition. Schmorl ...

  7. 17 Mouth & Tongue Problems: Pictures of Sores, Blisters ...

    www.webmd.com/oral-health/ss/slideshow-mouth...

    Triggers include hypersensitivity, infection, hormones, stress, and not getting enough of some vitamins. Also called aphthous ulcers, canker sores can show up on the tongue, cheek, even your gums ...

  8. 6 Heart Attack Symptoms in Women: Chest Pain and Other Signs

    www.webmd.com/heart-disease/features/womens...

    What NOT to Do. If you feel heart attack symptoms: Don't delay getting help. "Women generally wait longer than men before going to the emergency room," says Rita F. Redberg, MD, MSc, FACC ...

  9. HTML - Wikipedia

    en.wikipedia.org/wiki/HTML

    e. Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.