You can draw a ruled line between columns by specifying -ah-column-rule-*. The color of the column rule can be specified by -ah-column-rule-color, the length can be specified by -ah-column-rule-length, the style can be specified by -ah-column-rule-style, and the width can be specified by -ah-column-rule-width. In AH Formatter V7.2 or later, a shorthand that sets border-width, border-style, color, and column-rule-display using -ah-column-rule is effective. On the first page, -ah-column-rule-style: solid, -ah-column-rule-width: thick, -ah-column-rule-color: #BBFFBB; are specified to the column rule.

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On this page, the style of the column rule is specified by -ah-column-rule-style: groove. In addition, -ah-column-rule-display: all is used to specify how to draw the column rule, and the column rule is drawn even in the place where there is no column.

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On this page, a shorthand property is specified as -ah-column-rule: 20pt groove #BBFFBB all; so that the column rule is drawn in the same way as the second page that have -ah-column-rule-width: 20pt; -ah-column-rule-style: groove; -ah-column-rule-color: #BBFFBB; -ah-column-rule-display: all; settings.

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