The purpose of the P element is to define a paragraph. The exact
indentation, leading space, etc. of a paragraph is not specified and may
be a function of other tags, style sheets, etc. Paragraphs are typically
surrounded by a vertical space of one line or a half line. Additionally,
the first line in the paragraph may be indented in some cases.
Very early versions of HTML (before 2.0) did not specify P as a
container element, and some early browsers may become confused when
seeing the </p> tag.
Netscape versions 1.0-1.22 only understood ALIGN values of LEFT and CENTER.
Support for ALIGN=RIGHT began in version 2.0.
The 'justify' value of the ALIGN attribute is currently only supported in
the 4.0 Beta 2 and above versions of Netscape and Internet Explorer.