Posts on Codidact, including questions, answers, articles, tag wikis, help pages, and user profiles, support the use of the following HTML tags:
apspanbiemsstronghrh1, h2, h3, h4, h5,
h6blockquoteimgstrikedel, inscodeprebrul, ol, lisup, subsectiondetails, summarytable, thead, tbody, tr,
th, tdThese tags may have the following attributes:
idclasshreftitlesrcheightwidthaltdirlangstartrowspancolspanShorter text forms, such as comments, support the following HTML tags:
abiemstrongstrikedelcodeThese tags may have the following attributes:
hreftitleHTML tags that do not appear on this list will be stripped out and not displayed if they are
included in posts or comments. The source code for supported tags in posts can be found in
posts_helper.rb, and for comments in
comments_helper.rb.
Much of the content of this page came from this answer by luap42.