Search results
Results from the WOW.Com Content Network
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.
Some users have small screens or need to configure their systems to display large text; "forced" large thumbnails can leave little width for text, making reading difficult. In addition, forcing a "larger" image size at say 260px will actually make it smaller for those with a larger size set as preference.
Specifying a size does not just change the apparent image size using HTML; it actually generates a resized version of the image on the fly and links to it appropriately. This happens whether or not you specify the size in conjunction with "thumb". This means the server does all the work of changing the image size, not the web browser of the user.
Flexible images are also sized in relative units, so as to prevent them from displaying outside their containing element. [5] Media queries allow the page to use different CSS style rules based on characteristics of the device the site is being displayed on, e.g. width of the rendering surface (browser window width or physical display size).
Without this marker, web browsers with the "quirks mode"-switching capability will size objects in web pages as IE 5 on Windows would, rather than following CSS standards. Problems with the patchy adoption of CSS and errata in the original specification led the W3C to revise the CSS 2 standards into CSS 2.1, which moved nearer to a working ...
An image scaled with nearest-neighbor scaling (left) and 2×SaI scaling (right) In computer graphics and digital imaging, image scaling refers to the resizing of a digital image. In video technology, the magnification of digital material is known as upscaling or resolution enhancement.
If you can't see the image, make sure your browser preferences are set to display images and try again. Alternatively, you can listen to the image challenge by clicking on the audio icon. Display images in Edge Display images in Safari Display images in Firefox Display images in Google Chrome Display images in Internet Explorer
Except with very good reason, do not use px (e.g. |thumb|300px), which forces a fixed image width measured in pixels, disregarding the user's image size preference setting. In most cases upright= scaling_factor should be used, thereby respecting the user's base preference (which may have been selected for that user's particular devices).