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#### 9.4.1 Box Series

If a box definition is not followed by a semicolon, but another box definition, then the second box will be drawn directly below the first one. This is useful to express alternatives, see the below example.

The subsequent boxes will inherit the fill, line and text attributes of the first one, but you can override them. The line type of subsequent boxes (‘`--`’ in the example) will determine the style separating the boxes — the border will be as specified in the first one. The horizontal size of the combined box is determined by the first definition, entity names in subsequent boxes are ignored.

Boxes can be collapsed, similar to group entities. The ‘`indicator`’ attribute governs if collapsed boxes show a small indicator to indicate that there is hidden content inside.