动态HTML（Dynamic HTML，简称DHTML、DHML）指的是网页内容随着用户或计算机进程提供的参数而变化的HTML，通过结合HTML、用户端脚本语言（Client Side Script，如JavaScript）、串接样式表（CSS）和文档对象模型（DOM）来创建动态网页内容。
英语百科
Dynamic HTML 动态HTML
Dynamic HTML, or DHTML, is an umbrella term for a collection of technologies used together to create interactive and animated web sites 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 CSS), and the Document Object Model. The application of DHTML was introduced by Microsoft with the release of Internet Explorer 4 in 1997.