DOCTYPE declaration, I Every XHTML document must begin with one of the DOCTYPE declarations (DTDs):
{"Image DocumentName": "DOCTYPE declaration, I Every XHTML document must begin with one of the DOCTYPE declarations (DTDs):", "Image ImageDescription": "<!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Strict//EN  > <!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN  > <!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Frameset//EN  >", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}