XHTML-Transitional

(1)

 
Insert the XHTML-Transitional DTD.

Insert the XHTML-transitional DTD into the top of your document. Do not insert the XHTML-strict DTD. Insert the XHTML-transitional DTD.

Here it is, the XHTML version 1.0 Transitional DTD (DOCTYPE).

Select, then copy:

(Option: copy the DTD from a .txt file, instead.)

Example.