I am using the xcb environment for exercises, and the numbers extend beyond the left margin. How do I move them to the right?
• Begin this section as follows: \begin{xcb}{Exercises} \settowidth{\leftmargini}{NN.\hskip\labelsep} \begin{enumerate} For NN substitute a string representing the largest exercise number of this group. For example, • specify 99 for 10 or more exercises if the chapter number is not included; • specify 12.15 if this is chapter 12 and it contains 15 numbered exercises. • If your exercise numbers have a format different from “NN.”, use that format in setting \leftmargini. For example, if the numbers are set in parentheses, use this form instead: \settowidth{\leftmargini}{(NN)\hskip\labelsep} • Note: The xcb environment presets the margin for exercise numbers to the width of one digit. If there are more than 9 exercises, or the exercise numbers include the chapter number, this margin must be reset. • This must be done separately for every xcb environment.
