Excel adapts to paper size: a way to adapt to different paper when CSS is printed

You can specify media= "print" to make the stylesheet work only when printing, and then use Display:none to hide headers, footers, advertisements, and so on, and note that this should be done by setting the width of the page content to 100% better, because it can be adapted to different paper.
You might say: I've set 100%, why did the right half of the article not appear on paper when I printed it? At this time to think about: from the body below the first level of elements to start, to the article this level, is not that the width of the div it is not 100%? It is possible that you used a fixed-length unit to set the width of a div at a certain level.
By the way, the connection style example:

This article links http://www.cxybl.com/html/wyzz/CSS/20120601/27368.html