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CSS image replacement is a Web design technique that uses Cascading Style Sheets to replace text on a Web page with an image containing that text. It is intended to keep the page accessible to users of screen readers, text-only web browsers, or other browsers where support for images or style sheets is either disabled or nonexistent, while allowing the image to differ between styles.
FOUC when loading Wikipedia's main page. A flash of unstyled content (FOUC, or flash of unstyled text) [1] [2] is an instance where a web page appears briefly with the browser's default styles prior to loading an external CSS stylesheet, due to the web browser engine rendering the page before all information is retrieved. [3]
A typical lightbox image display. Lightbox is a JavaScript library that displays images and videos by filling the screen, and dimming out the rest of the web page. [1] The original JavaScript library was written by Lokesh Dhakar. [2] The term Lightbox may also refer to other similar JavaScript libraries.
In web development, hydration or rehydration is a technique in which client-side JavaScript converts a web page that is static from the perspective of the web browser, delivered either through static rendering or server-side rendering, into a dynamic web page by attaching event handlers to the HTML elements in the DOM. [1]
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.
packed All images aligned by having same height, justified, captions centered under images; packed-overlay Like packed, but caption overlays the image, in a translucent box; packed-hover Like packed-overlay, but caption is only visible on hover (degrades gracefully on screen readers, and falls back to packed-overlay if a touch screen is used)
CSS allows the separation of presentation from structure. CSS can define color, font, text alignment, size, borders, spacing, layout and many other typographic characteristics, and can do so independently for on-screen and printed views. CSS also defines non-visual styles, such as reading speed and emphasis for aural text readers.
In HTML DOM (Document Object Model), every element is a node: [4] A document is a document node. All HTML elements are element nodes. All HTML attributes are attribute nodes. Text inserted into HTML elements are text nodes. Comments are comment nodes.