:blank Back

• :blank is a CSS pseudo-class selector used to select pages of a printed document, such as a book, that are empty as a result of a forced page break.
• It is used in conjunction with the @page rule which selects all pages in a printed document. So, when used with @page, :blank acts kind of like a filter used to select only the empty pages that are empty as a result of a forced page break.

@page :blank {
    /** styles for the empty page */
}

Note

• Only the left and right values of the page-break-before and page-break-after properties can generate pages that match :blank.
• Styles specified in a :blank @page rule override any styles provided in an @page rule that has no pseudo-class specified.
• Also, styles specified in a :blank @page rule override any styles provided in :left and :right @page rules. (:left and :right are selectors used to select the left pages and the right pages of a double-sided printed document, such as a book.)
• The page-break-before and page-break-after properties will be replaced with break-before and break-after properties, respectively, in a future CSS level.
• According to rules @page, you can only change some CSS properties:

at-rules

• In CSS3, at-rules that select and target page margins were introduced. They have no browser support at this time. But the following is an example of how you might style an empty page using a page margin at-rule; the example inserts content into the center of the top margin of an empty page:

@page :blank {
    @top-center: {
        content: "The page is empty";
    }
}