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htm or html) and with hypertext links to enable navigation from one page or section to another. Webpages often use associated graphics files to provide illustration, and these too can be clickable links. A webpage is displayed using a web browser, and can be designed to make use of applets (subprograms than run inside the page) which often provide motion graphics, interaction, and sound.Webpages can be larger than fits on the screen. Except in special cases a page wider than fits on the screen, requiring horizontal scrolling, is impractical and therefore avoided: see page widening. A page higher than fits on the screen is more common and not problematic; it requires vertical scrolling to see all of it.
A collection of webpages stored in a single folder or within related subfolders of a web server is known as a website. A website generally includes a frontpage named index.htm or index.html.
A difficulty in designing and testing webpages is that they should be suitable for many browsers and browser settings and different screen resolutions.
Usually a webpage has a URL and therefore allows deep linking. Sometimes it has only a temporary URL referring to a cache area. This may e.g. be the case when the page is the result of zooming and shifting a map. Sometimes a page results
For embedding ( transclusion) of an imageIn common usage, an image (from Latin imago or picture is an artefact that reproduces the likeness of some subject—usually a physical object or a person. Images may be two-dimensional (e. a photograph) or three dimensional (e. a statue). They are typicall in a webpage, see HTML element#ImagesThis article is about HTML elements. For information on how to format Wikipedia entries, see How to edit a page and In computing, an HTML element (instance) in terms of SGML is the complete sequence of a start tag (with attributes and their values), any e.
The graphics file formatSee also Graphics file formats Here is a summary of the most common graphics file formats: Common Raster Graphics Formats file extension MIME type proper name description. art ? ART ART is a proprietary image file format mostly used by the America Online® in webpages is usually JPEGIn computing, JPEG is a commonly used standard method of compressing photographic images. The file format which employs this compression is commonly also called JPEG; platforms with short file extensions may use. JPE to identify this format. The name stan for photographA photograph (often just called a photo is an image (or a representation of that on e. paper) created by collecting and focusing electromagnetic radiation. The most common photographs are those created of visible wavelengths, producing permanent records os and GIFGIF (Graphics Interchange Format) is a bitmap image format that is widely used on the World Wide Web, both for still images and for animations. GIF" is often pronounced giff with a hard g (that is, like "gift" without the final t), but the correct pronunc or PNGPNG Portable Network Graphics , sometimes pronounced as ping , is a relatively new bitmap image format that is becoming popular on the World Wide Web and elsewhere. PNG was largely developed to deal with some of the shortcomings of the GIF format and allo for other images such as diagrams, drawingThis article is about the art form. Drawing also refers to a method of producing wire, bars, or tubes. Drawing is one way of making an image: it is the process of making marks on a surface by applying pressure from or moving a tool on the surface. These ms, graphs, etc. The last two formats can also be used for photographs but are not as suitable for that purpose as JPEG (JPEG is lossy while GIF and PNG are lossless). GIF is used for animations, GIF and PNG for images with transparent pixels, PNG for images with partially transparent pixels (but this is not supported by e.g. IE). All these are raster graphics. There is also the SVG format: Scalable Vector Graphics. Currently more common ways to supply vector graphics are either with a PDF file, viewed either using a plug-in of the browser or a separate viewer, or with Flash. This is useful e.g. for a map, often a combination of a vector graphics layer and text, and possibly a raster graphics layer. This gives better results when zooming in than a GIF or PNG image (JPEG would be even worse due to compression artifacts).
Alternatively, on zooming in the server supplies a new image. In that case one can not download the whole map, unless perhaps piece by piece. See e.g. the links in Map#External links.
Also, as an example, compare the GIF and PDF province maps in South Holland#External links.
See also Map#Electronic maps.