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{{Short description|Coding interactive or animated websites}}'''Dynamic HTML''', or '''DHTML''', is a collection of technologies used together to create interactive and animated
DHTML allows scripting languages to change
▲'''Dynamic HTML''', or '''DHTML''', is a collection of technologies used together to create interactive and animated [[website]]s by using a combination of a static [[markup language]] (such as [[HTML]]), a [[client-side scripting]] language (such as [[JavaScript]]), a presentation definition language (such as [[Cascading Style Sheets|CSS]]), and the [[Document Object Model]] (DOM).<ref>{{cite web|url=http://www.w3.org/Style/#dynamic|title=Web Style Sheets|website=www.w3.org|access-date=7 April 2018}}</ref> The application of DHTML was introduced by [[Microsoft]] with the release of [[Internet Explorer 4]] in 1997.
By contrast, a
▲DHTML allows scripting languages to change [[variable (programming)|variable]]s in a web page's definition language, which in turn affects the look and function of otherwise "static" HTML page content, after the page has been fully loaded and during the viewing process. Thus the dynamic characteristic of DHTML is the way it functions while a page is viewed, not in its ability to generate a unique page with each page load.
DHTML is differentiated from
▲By contrast, a [[dynamic web page]] is a broader concept, covering any web page generated differently for each user, load occurrence, or specific variable values. This includes pages created by client-side scripting, and ones created by [[server-side scripting]] (such as [[PHP]], [[Python (programming language)|Python]], [[JavaServer Pages|JSP]] or [[ASP.NET]]) where the web server generates content before sending it to the client.
▲DHTML is differentiated from [[Ajax (programming)|Ajax]] by the fact that a DHTML page is still request/reload-based. With DHTML, there may not be any interaction between the client and server after the page is loaded; all processing happens in JavaScript on the client side. By contrast, an Ajax page uses features of DHTML to initiate a request (or 'subrequest') to the server to perform additional actions. For example, if there are multiple tabs on a page, pure DHTML approach would load the contents of all tabs and then dynamically display only the one that is active, while AJAX could load each tab only when it is really needed.
== Uses ==
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