Reading PDFs on the Kindle Fire

Currently we allow the following HTML tags in comments:

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<h1> This is heading 1

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<h5> This is heading 5

<h6> This is heading 6

<i> Defines italic text

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<pre> Defines preformatted text

<q> Defines a short quotation

<samp> Defines sample computer code text

<small> Defines small text

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<s> Defines strikethrough text

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<strong> Defines strong text

<sub> Defines subscripted text

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<u> Defines underlined text