Paragraph boxes are box to diagram boxes, and so on. Each separate visible element contained within a TeX document is contained within a box. Just as with commandsyou latex define new environments. Note that contentpos has no effect if the box is not larger than the text it contains.
Sign up or log in Sign up using Google. Linked The fancybox package provides additional boxes. Sign up or log in Sign up using Google. In hac habitasse platea dictumst.