Danbooru's translation note system allows users to include HTML markup alongside note text. Used properly, this system allows translators to mimic the original artist's text formatting with high fidelity, heightening the reader's sense of immersion in the work. While using markup to precisely replicate every nuance of formatting isn't required, it is recommended that translators make an attempt to match formatting changes in the original with changes in the translation, especially in the case of artists such as karaagetarou whose prolific use of text formatting effects forms a significant part of their visual style.

Please bear in mind that notes use HTML formatting in contrast to most of Danbooru, which uses DText formatting.

Below is a list of formatting tags to keep in mind when translating. These tags are listed roughly in order of importance, and are listed as opening tags only. (All HTML markup must have both an opening and a closing tag; for instance, to markup a sentence with bold, it must begin with the <b> tag and end with the </b> tag.)

• <tn> is a Danbooru-specific tag for translator's notes; that is, clarifying remarks on the actual translation. It makes adds a line break and makes enclosed text small and gray. (It seems that it is actually just an alias for <br><small><font color=gray>.) For purposes of consistency, all translator's notes should use this tag, and do not need to be indicated with 'TL:', 'N.B.', or any other such identifier.
• <b> bolds text. <i> italicizes text. <s> strikes out text. <u> underlines text. <big> increases the font size of text. <small> decreases the font size of text. If you remember no other markup tags, remember these; they will usually be sufficient for whatever you're trying to do.
• <a href="URL"> makes a link to URL. This feature is best used in conjunction with (or in place of) translator's notes to avoid undue clutter, e.g. to link to an external page that explains a Japanese meme. Note that URL must begin with "http://" or it will be treated as an internal link to Danbooru.
• <font color="COLOR"> colors text. COLOR can be either an X11 color name or a hexadecimal RGB value of the form #RRGGBB.
• <font size="SIZE"> resizes text. SIZE can be any positive or negative number. However, sizes below -1 do not seem to be rendered in browsers, making this tag mainly useful for enlarging text beyond the capacity of <big>.
• When using both the size and color attributes of the <font> tag, they can be combined in a single tag; e.g. <font size="+3" color="red">. Note that no matter which attributes you use, the closing tag for the <font> tag is always </font> and not </font color> or </font size>.
• Advanced users can use the <font style="STYLE"> tag to apply CSS styles to text.
• In order to display a < in notes without it being interpreted as an HTML tag, you should type &lt; instead.

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