Horizontal Separator

Something that separates blocks of HTML, such as

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(I know I put one of those around here somewhere...

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'Ah!' ^ There it is!!! ;-)

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Yet another one... Four or more '-' chars at the start of a line equals

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in Wiki.

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One more, just for the sake of it-

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A hierarchy of HorizontalSeparators using dashes, underscores and indented dashes:

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