CSS MARKS

Printed documents in the printing industry often carry marks on the page outside the content area. These marks are used to align and trim groups of papers.

This property specifies what sort of marks should be rendered just outside the rendered page box. The characteristics and position of the marks will be browser dependent.

Example
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body {
  marks: crop cross
}
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<body style="marks: crop cross">test text in the body</body>

Possible Values

inherit: Explicitly sets the value of this property to that of the parent.
none: No page marking will occur.
crop: Specifies that crop marks be used to indicate where the page should be cut.
cross: Specifies that cross-hair marks be rendered in order to precisely align the current page with other pages carrying ‘cross’ marks.