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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.
To demonstrate specificity Inheritance Inheritance is a key feature in CSS; it relies on the ancestor-descendant relationship to operate. Inheritance is the mechanism by which properties are applied not only to a specified element but also to its descendants. Inheritance relies on the document tree, which is the hierarchy of XHTML elements in a page based on nesting. Descendant elements may ...
Sites that use CSS with either XHTML or HTML are easier to tweak so that they appear similar in different browsers (Chrome, Internet Explorer, Mozilla Firefox, Opera, Safari, etc.). Sites using CSS " degrade gracefully " in browsers unable to display graphical content, such as Lynx , or those so very old that they cannot use CSS.
CSS2 in May 1998 (later revised in CSS 2.1 and CSS 2.2) extended CSS1 with facilities for positioning and table layout. The preference for using HTML tables rather than CSS to control the layout of whole web pages was due to several reasons: the desire of content publishers to replicate their existing corporate design elements on their web site;
an image that is not rectangular can be filled to the required rectangle using transparent surroundings; the image can even have holes (e.g. be ring-shaped) in a run of text, a special symbol for which an image is used because it is not available in the character set, can be given a transparent background, resulting in a matching background.
For instance, if an SVG file is deployed as a CSS background image, or a logo on some website, or in some image gallery, then when the image is loaded in a browser it activates a script or other content. This could lock up the browser (the Billion laughs attack), but could also lead to HTML injection and cross-site scripting attacks. The W3C ...
Getting older has a few perks — wisdom, greater perspective on life and senior discounts among them — but most of us associate aging with the harsh reality of wrinkles, joint problems and a ...
A website wireframe is a low-cost way to show layout without doing all the work of creating the final HTML and CSS, and without writing the copy or creating any images. Lorem ipsum text is often used to avoid the embarrassment any improvised sample copy might cause if accidentally published.