Wireless Markup Language When its time to find out how to make content available over WAP, we need to get to grips with its Markup Language. ie, WML. WML was designed from the start as a markup language to describe display of content on small screen devices. It is a Markup language enabling the formatting of text in WAP environment using a variety of markup tags to determine the display appearance of content. WML is defined using the rules of XML-extensible markup language and therefore an XML application. WML provides a means of allowing the user to navigate around the WAP application and supports the use of anchored links as found commonly in the web pages. It also provides support for images and layout within the constraints of the device