Comment text, on either a post or a comment, can be formatted the following ways: 

Bold: Click the bold B on the top of the comment box then type your comment or highlight the text to comment and click the B.

Italicize: Click the bold I on the top of the comment box then type your comment or highlight the text to comment and click the I.

Enlarge Text: Click the double T (tT) on the top of the comment box then type your comment or highlight the text to comment and click the double T (tT).

Bullet Text: Click the dotted bullets on the top of the comment box then type your comment or highlight the text to comment and click the dotted bullets. (hold shift + enter to skip lines)

Numbered Text: Click the number bullets on the top of the comment box then type your comment or highlight the text to comment and click the number bullets. (hold shift + enter to skip lines)

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