从技术上讲，您可以这样做，但是要让所有浏览器打印出与屏幕上显示的一模一样的页面，需要做很多工作。而且，大多数浏览器强制在打印结果上输入URL、打印日期和页码，这并不总是理想的。这不能被改变或禁用。

相反，我建议根据屏幕上的内容创建一个PDF，并将PDF提供给下载和/或打印。虽然大多数可用的PDF库都是付费的，但也有一些免费的替代方案可用于创建基本的PDF。

寻找类似的问题，我发现这个- http://www.indigorose.com/forums/archive/index.php/t-13334.html

A4是一种文档格式，作为屏幕图像，这取决于图像的分辨率，例如A4文档调整为:

72 dpi (web) = 595 X 842像素 300 dpi(打印)= 2480 X 3508像素 (这是我所知道的“A4”。210mm X 297mm @ 300 dpi) 600 dpi (打印)= 4960 X 7016像素

I know that this subject is quite old but I want to share my experience about that topic. Actually, I was searching a module that can help me with my daily reports. I'm writting some documentations and some reports in HTML + CSS (instead of Word, Latex, OO, ...). The objectif would be to print them on A4 paper to share it with friends, ... Instead of searching, I decided to have a small funny coding session to implement a simple lib that can handle "pages", page number, summary, header, footer, .... Finally, I did it in ~~2h and I know that's not the best tool ever but it's almost ok for my purpose. You can take a look at this project on my repo and don't hesitate to share your ideas. It's maybe not what you are searching for at 100% but I think that this module can help you.

基本上我创建了一个页面的主体“宽度:200mm;”和容器的高度:290mm(小于A4)。然后我使用了page-break-after: always;因此，浏览器的“打印”选项知道何时拆分页面。

回购:https://github.com/kursion/jsprint

A4尺寸为210x297mm

所以你可以用CSS设置HTML页面来适应这些大小:

html,body{
    height:297mm;
    width:210mm;
}

为每一页创建节，并使用下面的代码来调整页边距、高度和宽度。

如果你打印的是A4尺寸。

然后用户

Size : 8.27in and 11.69 inches

@page Section1 {
    size: 8.27in 11.69in; 
    margin: .5in .5in .5in .5in; 
    mso-header-margin: .5in; 
    mso-footer-margin: .5in; 
    mso-paper-source: 0;
}

div.Section1 {
    page: Section1;
} 

然后创建一个包含所有内容的div。

<div class="Section1"> 
    type your content here... 
</div>

or

@media print {
    .page-break { 
        height: 0; 
        page-break-before: always; 
        margin: 0; 
        border-top: none; 
    }
}

body, p, a,
span, td { 
    font-size: 9pt;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    margin-left: 2em; 
    margin-right: 2em;
}

.page {
    height: 947px;
    padding-top: 5px;
    page-break-after: always;   
    font-family: Arial, Helvetica, sans-serif;
    position: relative;
    border-bottom: 1px solid #000;
}

PPI and DPI make absolutely no difference to how a document will print off a browser. the printer takes no information on screen dot pitch or the DPI of the images etc. if you are printing images they would print at a size similar in proportion to how they are displayed on screen. the print processor of the browser would increase the DPI of the images from something rather low like 72dpi to whatever DPI the rest of the document is. say the image displays as half a page wide, then its about 4" wide physically. the pixel width of the image would be approx 300px to display correctly in the browser. by the time it prints at a nominal 300DPI, the processor has added pixels and the image will grow to around 1200px which at 300 DPI is 4".

当涉及到矢量或非基于像素的元素，如文本，打印机从驱动程序中选择自己的DPI，这与屏幕点间距或浏览器宽度无关。如果浏览器宽度为3000px，打印处理器将适当地换行文本。

heres what makes it hard about creating print displays: each browser and printer will interpret text sizes (pt, em, px) and spacing in its own way. depending on what printer, browser and maybe even OS you use, you will get a different amount of lines and characters per page. so even if you test on your computer using your browser and printer and figure out that you can display the text in a box at 640x900px and its perfect on print, the next guy who tries to print will possibly get it printing differently. there really is no way to force each printer and browser to get it identical each time.

忘记像素，更忘记DPI，你唯一可以使用像素的事情是设置一个表宽度，模拟打印机上可打印区域的宽度。在这种情况下，我发现640px宽是接近的。