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  1. Event handling (overview) - Event reference | MDN

    Events are signals fired inside the browser window that notify of changes in the browser or operating system environment. Programmers can create event handler code that will run when an event fires, allowing web pages to respond appropriately to change....handlers using HTML onevent attributes is not recommended! They...

    developer.mozilla.org/en-US/docs/Web/Events/Eve...
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  2. Mobile accessibility checklist - Accessibility ...

    This document provides a concise checklist of accessibility requirements for mobile app developers. It is intended to continuously evolve as more patterns arise....multiple cards ): Use the hidden attribute or visibility or display style...unavoidable, aria-hidden attribute should not be used. Focus...

    developer.mozilla.org/en-US/docs/Web/Accessibil...
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  3. content/files/en-us/learn/html/introduction_to_...

    The content behind MDN Web Docs. Contribute to mdn/content development by creating an account on GitHub....nested elements, and unclosed attributes. ](badly-formed-html.png)...is this? <li>Unclosed attributes: Another common source of...

    github.com/mdn/content/blob/main/files/en-us/le...
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  4. CSP: style-src - HTTP | MDN

    The HTTP Content-Security-Policy (CSP) style-src directive specifies valid sources for stylesheets....css>;rel=stylesheet Inline style attributes are also blocked: html <div...JavaScript by setting the style attribute directly, or by setting cssText...

    developer.mozilla.org/en-US/docs/Web/HTTP/Heade...
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  5. SystemException Class (System) | Microsoft Learn

    Serves as the base class for system exceptions namespace....XsltException More… Attributes SerializableAttribut ComVisibleAttribute...

    learn.microsoft.com/en-us/dotnet/api/system.sys...
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  6. Set-Cookie - HTTP | MDN

    The HTTP Set-Cookie 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....SameSite=None; Secure // Multiple attributes are also possible, for example:...Domain=<domain-value>; Secure; HttpOnly Attributes <cookie-name>=<cookie-value>...

    developer.mozilla.org/en-US/docs/Web/HTTP/Heade...
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  7. AudioParam - Web APIs | MDN

    Learn about the AudioParam interface, including its properties and methods, code examples, specifications, and browser compatibility....value attributes are ignored. This list of...the initial value of the attribute as defined by the specific...

    developer.mozilla.org/en-US/docs/Web/API/AudioP...
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  8. field-sizing - CSS: Cascading Style Sheets | MDN

    The field-sizing CSS property enables you to control the sizing behavior of elements that are given a default preferred size, such as form control elements. This property enables you to override the default sizing behavior, allowing form controls to adjust in size to fit their contents....Controls with placeholder attributes will be rendered large enough...placeholder text. The size attribute modifies the default preferred...

    developer.mozilla.org/en-US/docs/Web/CSS/field-...
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  9. ARIA live regions - Accessibility | MDN

    Using JavaScript, it is possible to dynamically change parts of a page without requiring the entire page to reload — for instance, to update a list of search results on the fly, or to display a discreet alert or notification which does not require user interaction. While these changes are usually visually apparent to users who can see the page, they may not be obvious to users of assistive technologies. ARIA live regions fill this gap and provide a way to programmatically expose dynamic content changes in a way that can be announced by assistive technologies.... Including an aria-live attribute or a specialized live region...works as long as you add the attribute before the changes occur —...

    developer.mozilla.org/en-US/docs/Web/Accessibil...
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  10. content/files/en-us/web/html/element/fencedfram...

    The content behind MDN Web Docs. Contribute to mdn/content development by creating an account on GitHub.... ## Attributes This element includes the...[global attributes](/en-US/docs/Web/HTML/Global_attributes). - `allow`...

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