WAP homepages are not too different from the HTML homepages. The markup language used for WAP is WML (Wireless Markup Language). WML uses tags - just like HTML - but the syntax is stricter and conforms to the XML 1.0 standard. All WML pages have the extension *.WML, just similar to the HTML pages have the extension *.HTML.

WML is mostly about the text. Tags that would slow down the communication with handheld devices are not a part of the WML standard. The use of tables and images is strongly restricted.

Since WML is an XML application, all tags are case sensitive (<wml> is not the same as <WML>), and all tags must be properly closed.

A Deck is the best compared to a traditional HTML page and consists of one or more Cards. Always the complete deck is loaded to the device, therefore the deck should be small and contain logically pertaining cards.

A Deck has a <wml> Tag at the beginning (and a reciprocal closing </wml> at the end), and contains Meta-Tags and if needed <do>-elements good for all cards of this deck.

A Card is the part of a Deck where the user navigates. He jumps from one <card> to another - which may reside in the same deck (in the same file) or somewhere else.