H1 - Level 1 heading

Appearance:	<H1> </H1>
Attributes:	ALIGN=left\|right\|center
Contents:	TT, I, B, U, STRIKE, BIG, SMALL, SUB, SUP, EM, STRONG, DFN, CODE, SAMP, KBD, VAR, CITE, A, APPLET, IMG, FONT, BASEFONT, BR, MAP, INPUT, SELECT, TEXTAREA and plain text.
May occur in:	BODY, DIV, CENTER, BLOCKQUOTE, FORM, TH, TD.

The level 1 heading is the most important header in the document. It should be rendered more prominently than any other header. It is usually used to indicate the title of the document. Often it has the same contents as the TITLE, although this is not required and not always a good idea. The title should be useful out of context (for example, in a bookmarks file) but the level 1 heading is only used inside the document.

The optional ALIGN attribute controls the horizontal alignment of the header. It can be LEFT, CENTER or RIGHT.

Notes:

Headers should be used in hierarchical order.
Do not assume that this header means "very large font size and bold." While this is a popular rendering, it can be anything the browser chooses.
Search engines may give words appearing in headers more importance in their index. The headers are also often used to build an "outline" of the document, which appears in the search results.
Right alignment is not as widely supported as centered.

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