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JavaScript (JS) es un lenguaje de programación ligero, interpretado, o compilado justo-a-tiempo (just-in-time) con funciones de primera clase. Si bien es más conocido como un lenguaje de scripting (secuencias de comandos) para páginas web, y es usado en muchos entornos fuera del navegador, tal como Node.js, Apache CouchDB y Adobe Acrobat …Responsive design refers to a site or application design that responds to the environment in which it is viewed. It encompasses a number of CSS and HTML features and techniques and is now essentially just how we build websites by default. Consider the sites that you visit on your phone — it is probably fairly unusual to come across a site that is …JavaScript. Python. MDN Web Docs, previously Mozilla Developer Network and formerly Mozilla Developer Center, is a documentation repository and learning resource for web developers. It was started by Mozilla in 2005 [1] as a unified place for documentation about open web standards, Mozilla's own projects, and developer guides. The X-Frame-Options HTTP response header can be used to indicate whether a browser should be allowed to render a page in a , , or . Sites can use this to avoid click-jacking attacks, by ensuring that their content is not embedded into other sites.May 1, 2023 · JavaScript Guide. The JavaScript Guide shows you how to use JavaScript and gives an overview of the language. If you need exhaustive information about a language feature, have a look at the JavaScript reference. This Guide is divided into the following chapters. 22 Jan 2024 ... Alt text is also displayed on the page if the image can't be loaded for some reason: for example, network errors, content blocking, or linkrot.Learn JavaScript. An excellent resource for aspiring web developers — Learn JavaScript in an interactive environment, with short lessons and interactive tests, guided by automated assessment. The first 40 lessons are free, and the complete course is available for a small one-time payment.The Web Authentication API (WebAuthn) is an extension of the Credential Management API that enables strong authentication with public key cryptography, enabling passwordless authentication and secure multi-factor …to easily build projects on the web platform. Vision A world where everyone developing for the web follows open standards. Key Performance Indicator (KPI) MDN's …Jul 3, 2023 · JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax, which is commonly used for representing and transmitting data on the web (i.e., sending some data from the server to the client, so it can be displayed on a web page). You'll come across it quite often, so in ... Experimental. Set to true to make the <iframe> credentialless, meaning that its content will be loaded in a new, ephemeral context. It doesn't have access to the network, cookies, and storage data associated with its origin. It uses a new context local to the top-level document lifetime.Firefox. Firefox is Mozilla's popular Web browser, available for multiple platforms including Windows, macOS, and Linux on the desktop and all Android and iOS mobile devices. With broad compatibility, the latest in Web technologies, and powerful development tools, Firefox is a great choice for both Web developers and end users.The image file formats that are most commonly used on the web are: APNG (Animated Portable Network Graphics) — Good choice for lossless animation sequences (GIF is less performant) AVIF (AV1 Image File Format) — Good choice for both images and animated images due to high performance. GIF (Graphics Interchange Format) — Good …CSS is a style sheet language. CSS is what you use to selectively style HTML elements. For example, this CSS selects paragraph text, setting the color to red: css. p { color: red; } Let's try it out! Using a text editor, paste the three lines of CSS (above) into a new file. Save the file as style.css in a directory named styles.Jan 25, 2024 · Element Description <blockquote> Indicates that the enclosed text is an extended quotation. Usually, this is rendered visually by indentation. A URL for the source of the quotation may be given using the cite attribute, while a text representation of the source can be given using the <cite> element. Freeware is computer software that is available for use at no charge. Common examples include Internet browsers, such as Mozilla Firefox and Google Chrome, the voice-over-IP servic...for (initialization; condition; afterthought) statement. An expression (including assignment expressions) or variable declaration evaluated once before the loop begins. Typically used to initialize a counter variable. This expression may optionally declare new variables with var or let keywords.JavaScript (JS)는 가벼운, 인터프리터 혹은 just-in-time 컴파일 프로그래밍 언어로, 일급 함수를 지원합니다. 웹 페이지를 위한 스크립트 언어로 잘 알려져 있지만, Node.js, Apache CouchDB, Adobe Acrobat처럼 많은 비 브라우저 환경에서도 사용하고 있습니다. JavaScript는 프로토타입 기반, 다중 패러다임, 단일 스레드 ... The browser made for developers. All the latest developer tools in beta in addition to features like the Multi-line Console Editor and WebSocket Inspector. A separate profile and path so you can easily run it alongside Release or Beta Firefox. Preferences tailored for web developers: Browser and remote debugging are enabled by default, as are ...Scalable Vector Graphics (SVG) is an XML -based markup language for describing two-dimensional based vector graphics. As such, it's a text-based, open Web standard for describing images that can be rendered cleanly at any size and are designed specifically to work well with other web standards including CSS, DOM, JavaScript, and …Trình duyệt Firefox Developer Edition. Chào mừng đến với trình duyệt yêu thích mới của bạn. Nhận được các tính năng mới nhất, hiệu suất nhanh, và các công cụ phát triển mà bạn cần để xây dựng cho trang web mở. Firefox Developer Edition …Accessibility (often abbreviated to A11y — as in, "a", then 11 characters, and then "y") in web development means enabling as many people as possible to use websites, even when those people's abilities are limited in some way. For many people, technology makes things easier. For people with disabilities, technology makes things possible.Jun 30, 2023 · This article looks at how to use HTML to break up a block of text into a structure of headings and paragraphs, add emphasis/importance to words, create lists, and more. Creating hyperlinks. Hyperlinks are really important — they are what makes the web a web. This article shows the syntax required to make a link and discusses best practices ... Mozilla Developer Network. MDN Web Docs is an open-source, collaborative project documenting Web platform technologies, including CSS, HTML, JavaScript, and Web APIs. MDN also provides an extensive set of learning resources for beginning developers and students. Source.In this talk from 2015, several contributors of the MDN project look at the past ten years of developer.mozilla.org, and at the decade to come. You will hear the story of different wiki software migrations, how a …content-box gives you the default CSS box-sizing behavior. If you set an element's width to 100 pixels, then the element's content box will be 100 pixels wide, and the width of any border or padding will be added to the final rendered width, making the element wider than 100px. border-box tells the browser to account for any border and padding ...In today’s digital age, having a reliable web browser is essential for a seamless browsing experience. With numerous options available in the market, it can be overwhelming to choo...Web Workers are a simple means for web content to run scripts in background threads. The worker thread can perform tasks without interfering with the user interface. In addition, they can make network requests using the fetch() or XMLHttpRequest APIs. Once created, a worker can send messages to the JavaScript code that created it …HTTP headers let the client and the server pass additional information with an HTTP request or response. An HTTP header consists of its case-insensitive name followed by a colon (:), then by its value.Whitespace before the value is ignored.. Custom proprietary headers have historically been used with an X-prefix, but this convention was …The MDN Web Docs (previously Mozilla Developer Network (MDN), previously Mozilla Developer Center (MDC), a.k.a. Devmo) project started in early 2005, when the Mozilla …The <dialog> HTML element represents a modal or non-modal dialog box or other interactive component, such as a dismissible alert, inspector, or subwindow. The HTML <dialog> element is used to create both modal and non-modal dialog boxes. Modal dialog boxes interrupt interaction with the rest of the page being inert, while non-modal …Oct 2, 2023 · CSS is a style sheet language. CSS is what you use to selectively style HTML elements. For example, this CSS selects paragraph text, setting the color to red: css. p { color: red; } Let's try it out! Using a text editor, paste the three lines of CSS (above) into a new file. Save the file as style.css in a directory named styles. Internships are an integral part of a college student’s professional development. They offer valuable hands-on experience, networking opportunities, and a chance to apply classroom...Event reference. Events are fired to notify code of "interesting changes" that may affect code execution. These can arise from user interactions such as using a mouse or resizing a window, changes in the state of the underlying environment (e.g. low battery or media events from the operating system), and other causes.developer.mozilla.org's top 5 competitors in January 2024 are: w3schools.com, stackoverflow.com, css-tricks.com, freecodecamp.org, and more. According to ...Summary. With Hypertext and HTTP, URL is one of the key concepts of the Web. It is the mechanism used by browsers to retrieve any published resource on the web. URL stands for Uniform Resource Locator. A URL is nothing more than the address of a given unique resource on the Web. In theory, each valid URL points to a unique resource.16 Dec 2023 ... Your blueprint for a better internet. MDN on Mastodon · MDN on Twitter · MDN ... Visit Mozilla Corporation's not-for-profit parent, the Mozilla&nb...When it comes to downloading files on your PC, choosing the right browser is crucial. With so many options available, it can be overwhelming to decide which one is best. However, M...Mozilla Firefox is widely regarded as one of the most popular web browsers available today. It offers a plethora of features and functionalities that make it a favorite among Windo...The methods Promise.prototype.then (), Promise.prototype.catch (), and Promise.prototype.finally () are used to associate further action with a promise that becomes settled. As these methods return promises, they can be chained. The .then () method takes up to two arguments; the first argument is a callback function for the …Jan 1, 2024 · Here we provide you with a structured course that will teach you all you need to know to become a front-end web developer. Work through each section, learning new skills (or improving existing ones) as you go along. Each section includes exercises and assessments to test your understanding before you move forward. REST. REST (Representational State Transfer) refers to a group of software architecture design constraints that bring about efficient, reliable and scalable distributed systems. The basic idea of REST is that a resource, e.g. a document, is transferred via well-recognized, language-agnostic, and reliably standardized client/server interactions.The value of this attribute must be the id of a <form> in the same document. (If this attribute is not set, the <select> is associated with its ancestor <form> element, if any.) This attribute lets you associate <select> elements to <form> s anywhere in the document, not just inside a <form>. It can also override an ancestor <form> element.CSS rules contain declarations, which in turn are composed of properties and values. Each property used in CSS has a value type that describes what kind of values it is allowed to have. In this lesson, we will take a look at some of the most frequently used value types, what they are, and how they work. Note: Each CSS property page has a syntax ...Service workers are enabled by default in all modern browsers. To run code using service workers, you'll need to serve your code via HTTPS — Service workers are restricted to running across HTTPS for security reasons. A server supporting HTTPS is necessary. To host experiments, you can use a service such as GitHub, Netlify, Vercel, etc.In HTML, most attributes have two faces: the content attribute and the IDL (Interface Definition Language) attribute. The content attribute is the attribute as you set it from the content (the HTML code) and you can set it or get it via element.setAttribute () or element.getAttribute ().Create a new HTML file in the same directory, called index.html. Add <audio> and <video> elements to the page; make them display the default browser controls. Give both of them <source> elements so that browsers will find the audio format they support best and load it. These should include type attributes.content-box gives you the default CSS box-sizing behavior. If you set an element's width to 100 pixels, then the element's content box will be 100 pixels wide, and the width of any border or padding will be added to the final rendered width, making the element wider than 100px. border-box tells the browser to account for any border and padding ...Het Mozilla Developer Network (MDN) biedt informatie over Open Web-technologieën, waaronder HTML, CSS en API’s voor zowel websites als HTML5-apps. Ook documenteert het Mozilla-producten, zoals Firefox OS.200 OK. The request succeeded. The result meaning of "success" depends on the HTTP method: GET: The resource has been fetched and transmitted in the message body.; HEAD: The representation headers are included in the response without any message body.; PUT or POST: The resource describing the result of the action is …Responsibly empowering developers with AI on MDN blog.mozilla.org. 7 months ago; Introducing AI Help: Your Trusted Companion for Web Development developer.mozilla.org. 8 months ago; Introducing the MDN Playground: Bring your code to life! developer.mozilla.org. 8 months ago; Recent contributions. Deleted removed values mdn/content. 2 hours ago ... Resources for Developers, by Developers. Documenting web technologies, including CSS, HTML, and JavaScript, since 2005.Oct 2, 2023 · CSS is a style sheet language. CSS is what you use to selectively style HTML elements. For example, this CSS selects paragraph text, setting the color to red: css. p { color: red; } Let's try it out! Using a text editor, paste the three lines of CSS (above) into a new file. Save the file as style.css in a directory named styles. Description. The filter () method is an iterative method. It calls a provided callbackFn function once for each element in an array, and constructs a new array of all the values for which callbackFn returns a truthy value. Array elements which do not pass the callbackFn test are not included in the new array.Set-Cookie. The Set-Cookie HTTP response header is used to send a cookie from the server to the user agent, so that the user agent can send it back to the server later. To send multiple cookies, multiple Set-Cookie headers should be sent in the same response. Warning: Browsers block frontend JavaScript code from accessing the …A comprehensive reference guide to all the many features of the HTML language — if you want to know what attributes an element has, or what values an …Dec 18, 2023 · A JavaScript array's length property and numerical properties are connected. Several of the built-in array methods (e.g., join (), slice (), indexOf (), etc.) take into account the value of an array's length property when they're called. Other methods (e.g., push (), splice (), etc.) also result in updates to an array's length property. This article looks at how to use HTML to break up a block of text into a structure of headings and paragraphs, add emphasis/importance to words, create lists, and more. Creating hyperlinks. Hyperlinks are really important — they are what makes the web a web. This article shows the syntax required to make a link and discusses best practices ...Summary. With Hypertext and HTTP, URL is one of the key concepts of the Web. It is the mechanism used by browsers to retrieve any published resource on the web. URL stands for Uniform Resource Locator. A URL is nothing more than the address of a given unique resource on the Web. In theory, each valid URL points to a unique resource.29 Jun 2023 ... Looking to become a front-end web developer? We have put together ... Visit Mozilla Corporation's not-for-profit parent, the Mozilla Foundation.Responsibly empowering developers with AI on MDN blog.mozilla.org. 7 months ago; Introducing AI Help: Your Trusted Companion for Web Development developer.mozilla.org. 8 months ago; Introducing the MDN Playground: Bring your code to life! developer.mozilla.org. 8 months ago; Recent contributions. Deleted removed values mdn/content. 2 hours ago ... Event reference. Events are fired to notify code of "interesting changes" that may affect code execution. These can arise from user interactions such as using a mouse or resizing a window, changes in the state of the underlying environment (e.g. low battery or media events from the operating system), and other causes.Our complete CSS tutorial, taking you from first steps through styling text, creating layouts, and more. CSS Layout Guides. There are a large number of guides to CSS Layout across MDN, this page collects them all together. Using CSS animations. CSS animations make it possible to animate transitions from one CSS style configuration to …Mozilla Hubs. Gather in this interactive, online, multi-dimensional social space. Firefox Developer Edition. Get the Firefox browser built just for developers. …About MDN. Contribute to the code. The Mozilla Developer Network (MDN) provides information about Open Web technologies including HTML, CSS, and APIs for both Web …200 OK. The request succeeded. The result meaning of "success" depends on the HTTP method: GET: The resource has been fetched and transmitted in the message body.; HEAD: The representation headers are included in the response without any message body.; PUT or POST: The resource describing the result of the action is …20 Dec 2023 ... Modern browsers already have several features to protect users' security on the web, but developers also need to employ best practices and code ...Firefox Developer Edition automatically sends feedback to Mozilla. Learn more Firefox Browser Developer Edition The browser made for developers All the latest developer …May 1, 2023 · JavaScript Guide. The JavaScript Guide shows you how to use JavaScript and gives an overview of the language. If you need exhaustive information about a language feature, have a look at the JavaScript reference. This Guide is divided into the following chapters. 12 Feb 2024 ... With a framework, the control is inverted: the framework calls the developer's code. ... Visit Mozilla Corporation's not-for-profit parent, the ...Introducing Node. Node (or more formally Node.js) is an open-source, cross-platform runtime environment that allows developers to create all kinds of server-side tools and applications in JavaScript . The runtime is intended for use outside of a browser context (i.e. running directly on a computer or server OS).The Mozilla Developer Network (MDN) provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and HTML5 Apps. It also documents …The URL that processes the form submission. This value can be overridden by a formaction attribute on a <button>, <input type="submit">, or <input type="image"> element. This attribute is ignored when method="dialog" is set. If the value of the method attribute is post, enctype is the MIME type of the form submission.The filter CSS property applies graphical effects like blur or color shift to an element. Filters are commonly used to adjust the rendering of images, backgrounds, and borders. Several functions, such as blur () and contrast (), are available to help you achieve predefined effects.Learn how to contribute. This page was last modified on Feb 4, 2024 by MDN contributors. Getting started with the web is a concise series introducing you to the …Trình duyệt Firefox Developer Edition. Chào mừng đến với trình duyệt yêu thích mới của bạn. Nhận được các tính năng mới nhất, hiệu suất nhanh, và các công cụ phát triển mà bạn cần để xây dựng cho trang web mở. Firefox Developer Edition …MDN Web Docs, previously Mozilla Developer Network and formerly Mozilla Developer Center, is a documentation repository and learning resource for web developers. It was started by Mozilla in 2005 [1] as a unified place for documentation about open web standards, Mozilla's own projects, and developer guides.If we want to calculate the height of an equilateral triangle, and we know its side length is 100, we can use the formulae length of the adjacent multiplied by the tangent of the angle is equal to the opposite. In JavaScript, we can do this with the following: js. 50 * Math.tan(degToRad(60));As with all shorthand properties, any omitted sub-values will be set to their initial value.Importantly, border cannot be used to specify a custom value for border-image, but instead sets it to its initial value, i.e., none. The border shorthand is especially useful when you want all four borders to be the same. To make them different from each other, …JSON is a syntax for serializing objects, arrays, numbers, strings, booleans, and null. It is based upon JavaScript syntax, but is distinct from JavaScript: most of JavaScript is not JSON. For example: Property names must be double-quoted strings; trailing commas are forbidden. Leading zeros are prohibited. A decimal point must be followed by ...JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax, which is commonly used for representing and transmitting data on the web (i.e., sending some data from the server to the client, so it can be displayed on a web page). You'll come across it quite often, so in ...In addition, it is more efficient to use relative URLs than absolute URLs in terms of maintenance (when you move your site to a different domain, you won't need to update all your URLs to include the new domain). In more advanced setups, you might use a CDN (Content Delivery Network) to deliver your images.16 Dec 2023 ... Your blueprint for a better internet. MDN on Mastodon · MDN on Twitter · MDN ... Visit Mozilla Corporation's not-for-profit parent, the Mozilla&nb...For making a request and fetching a resource, use the fetch () method. It is a global method in both Window and Worker contexts. This makes it available in pretty much any context you might want to fetch resources in. The fetch () method takes one mandatory argument, the path to the resource you want to fetch. It returns a Promise that resolves ...JSON is a syntax for serializing objects, arrays, numbers, strings, booleans, and null. It is based upon JavaScript syntax, but is distinct from JavaScript: most of JavaScript is not JSON. For example: Property names must be double-quoted strings; trailing commas are forbidden. Leading zeros are prohibited. A decimal point must be followed by ...Mozilla Developer Network (MDN) Web Docs is an evolving learning platform for Web technologies and the software that powers the Web. MDN's mission is simple: provide a …Dec 17, 2023 · The Document Object Model (DOM) connects web pages to scripts or programming languages by representing the structure of a document—such as the HTML representing a web page—in memory. Usually it refers to JavaScript, even though modeling HTML, SVG, or XML documents as objects are not part of the core JavaScript language. An Oracle database can run on all major platforms, including Windows and networking protocols. Oracle fully supports all industry standards and provides full support to developers....Description. The map () method is an iterative method. It calls a provided callbackFn function once for each element in an array and constructs a new array from the results. Read the iterative methods section for more information about how these methods work in general. callbackFn is invoked only for array indexes which have assigned values.MDN Web Docs (formerly known as the Mozilla Developer Network or MDN) is a free resource for in-depth documentation on web standards such as HTML5, CSS, …Here, we're going to add some command line flags to Vite's default suggestion to open the app in our browser as soon as the server starts, and use port 3000. Run the following in your terminal: bash. npm run dev -- --open --port 3000. Once the server starts, you should see a new browser tab containing your React app:20 Dec 2023 ... Modern browsers already have several features to protect users' security on the web, but developers also need to employ best practices and code ...Set-Cookie. The Set-Cookie HTTP response header is used to send a cookie from the server to the user agent, so that the user agent can send it back to the server later. To send multiple cookies, multiple Set-Cookie headers should be sent in the same response. Warning: Browsers block frontend JavaScript code from accessing the …The HTML element is used to create interactive controls for web-based forms in order to accept data from the user; a wide variety of types of input data and control widgets are available, depending on the device and user agent. The element is one of the most powerful and complex in all of HTML due to the sheer number of combinations of …4 Jan 2024 ... 文章浏览阅读366次，点赞12次，收藏9次。MDN Web Docs：MDN Web Docs，也被称为MDN网络文档或旧称Mozilla Developer Network、Mozilla Developer ...The more formal definition of website security is the act/practice of protecting websites from unauthorized access, use, modification, destruction, or disruption. Effective website security requires design effort across the whole of the website: in your web application, the configuration of the web server, your policies for creating and ...Presented By Sudhir Srivastava, Ph.D., M.P.H. Air Date Monday, May 3, 2021 Category NCI Cancer Topics @NCIPrevention @NCISymptomMgmt @NCICastle The National Cancer Institute NCI Di...Element Description <blockquote> Indicates that the enclosed text is an extended quotation. Usually, this is rendered visually by indentation. A URL for the source of the quotation may be given using the cite attribute, while a text representation of the source can be given using the <cite> element. <dd>The URL that processes the form submission. This value can be overridden by a formaction attribute on a <button>, <input type="submit">, or <input type="image"> element. This attribute is ignored when method="dialog" is set. If the value of the method attribute is post, enctype is the MIME type of the form submission.Want to get more involved? Learn how to contribute. This page was last modified on May 1, 2023 by MDN contributors. Your blueprint for a better internet.Scalable Vector Graphics (SVG) is an XML -based markup language for describing two-dimensional based vector graphics. As such, it's a text-based, open Web standard for describing images that can be rendered cleanly at any size and are designed specifically to work well with other web standards including CSS, DOM, JavaScript, and …This element includes the global attributes.. compact Deprecated Non-standard. This Boolean attribute hints that the list should be rendered in a compact style. The interpretation of this attribute depends on the user agent, and it …This element includes the global attributes.. compact Deprecated Non-standard. This Boolean attribute hints that the list should be rendered in a compact style. The interpretation of this attribute depends on the user agent, and it …14 Dec 2012 ... The Mozilla Developer Network (MDN) is one of the most popular resources for developers on the Web. Designed by developers for developers, MDN ...Canvas API. The Canvas API provides a means for drawing graphics via JavaScript and the HTML <canvas> element. Among other things, it can be used for animation, game graphics, data visualization, photo manipulation, and real-time video processing. The Canvas API largely focuses on 2D graphics. The WebGL API, which …Jul 13, 2023 · Java. Java is a compiled, object-oriented, highly portable programming language. Java is statically typed and features a similar syntax to C. It comes with a large library of readily usable functions, the Java Software Development Kit (SDK). Programs are compiled only once ahead of time into a proprietary byte code and package format that runs ... The X-Frame-Options HTTP response header can be used to indicate whether a browser should be allowed to render a page in a , , or . Sites can use this to avoid click-jacking attacks, by ensuring that their content is not embedded into other sites.Want to get more involved? Learn how to contribute. This page was last modified on May 1, 2023 by MDN contributors. Your blueprint for a better internet.As with all shorthand properties, any omitted sub-values will be set to their initial value.Importantly, border cannot be used to specify a custom value for border-image, but instead sets it to its initial value, i.e., none. The border shorthand is especially useful when you want all four borders to be the same. To make them different from each other, …As with all shorthand properties, any omitted sub-values will be set to their initial value.Importantly, border cannot be used to specify a custom value for border-image, but instead sets it to its initial value, i.e., none. The border shorthand is especially useful when you want all four borders to be the same. To make them different from each other, …Responsibly empowering developers with AI on MDN blog.mozilla.org. 7 months ago; Introducing AI Help: Your Trusted Companion for Web Development developer.mozilla.org. 8 months ago; Introducing the MDN Playground: Bring your code to life! developer.mozilla.org. 8 months ago; Recent contributions. fix: correct the format of DFL mdn/content. an ... 20 Dec 2023 ... Firefox. Opera. Safari. Chrome Android. Firefox for Android. Opera Android. Safari on iOS. Samsung Internet. WebView Android. a. Full support.The Mozilla Developer Network (MDN) provides information about Open Web technologies including HTML, CSS, and APIs for both Web sites and HTML5 Apps. It also documents Mozilla products, like Firefox OS. You've seen this stuff already in the course, but only in passing — here we'll discuss it all explicitly. Introducing JavaScript objects. In JavaScript, most things are …Responsibly empowering developers with AI on MDN blog.mozilla.org. 7 months ago; Introducing AI Help: Your Trusted Companion for Web Development developer.mozilla.org. 8 months ago; Introducing the MDN Playground: Bring your code to life! developer.mozilla.org. 8 months ago; Recent contributions. fix: correct the format of DFL mdn/content. an ... The HTML element is used to create interactive controls for web-based forms in order to accept data from the user; a wide variety of types of input data and control widgets are available, depending on the device and user agent. The element is one of the most powerful and complex in all of HTML due to the sheer number of combinations of …HTML reference. This HTML reference describes all elements and attributes of HTML, including global attributes that apply to all elements. This page lists all the HTML elements, which are created using tags. Elements in HTML have attributes; these are additional values that configure the elements or adjust their behavior in various ways … | Cnoxtgfn (article) | Mpjvwiny.