gfm-allowed-html-tags.md

HTML tags allowed by special filter with sanitization routines in Github Flavored Markdown:

a
abbr dfn
b strong 
bdo
br
cite q
code pre blockquote
del ins
details summary
div
dl dd dt
figure caption figcaption
h1 h2 h3 h4 h5 h6 h7 h8
hr
i em
img 
kbd samp
mark
ol ul li
p
ruby rt rp
s strike
small
span
sup sub
table tbody tfoot thead td th tr 
time
tt
var
wbr

Notes:

• in the above list of html tags, similar or related ones are placed in the same row
• kbd and samp render in the same way as code
• var renders in the same way as i and em
• tt doesn't exist in html5. Instead use code, kbd or samp
• strike doesn't exist in html5. Instead use del or s
• ins can be used for underlining text
• details can be used for creating clopasable section of text to hide or show "spoilers"
• mark can be used for highlighting text
• <span style="color:blue">blue</span> doesn't work. See raw text of this file to verify: blue

Reference:

• "sanitization_filter.rb" - https://github.com/gjtorikian/html-pipeline/blob/492ab848f82a692b4bd586e932b977ff8fcd2a88/lib/html_pipeline/sanitization_filter.rb#L16