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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.
The target PHP file then accesses the data passed by the form through PHP's $_POST or $_GET variables, depending on the value of the method attribute used in the form. Here is a basic form handler PHP script that will display the contents of the first_name input field on the page: form.html
JSFiddle is an online IDE which is designed to allow users to edit and run HTML, JavaScript, and CSS code on a single page. [3] Its interface is minimalist and split into four main frames, which correspond to editable HTML, JavaScript and CSS fields and a result field which displays the user's project after it is run.
JavaScript is an event-based imperative programming language (as opposed to HTML's declarative language model) that is used to transform a static HTML page into a dynamic interface. JavaScript code can use the Document Object Model (DOM), provided by the HTML standard, to manipulate a web page in response to events, like user input.
HTML CSS JavaScript Collaborative Embeddable Other CodePen [p] Free & Paid Yes Yes Yes No Yes HAML, Markdown, Slim, Jade, Less, Sass, Stylus, CoffeeScript, LiveScript, TypeScript, Babel Coder Online IDE [q] Free Yes Yes Yes Yes Yes
An HTML browser or other agent can infer the closure for the end of an element from the context and the structural rules defined by the HTML standard. These rules are complex and not widely understood by most HTML authors. The general form of an HTML element is therefore: < tag attribute1 = "value1" attribute2 = "value2" > ''content'' </ tag >.
<dl></dl>, an HTML element used for a definition list; Deep learning, a field of machine learning; Description logics, a family of knowledge representation languages; Delete Line (ANSI), an ANSI X3.64 escape sequence; Digital library, a library in which collections are stored in digital formats; Diode logic, a logic family using diodes
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