你可以使用css2 @page规则，它允许你将“size”属性设置为横向。

我尝试了Denis的答案，遇到了一些问题(在使用横向页面后，纵向页面无法正常打印)，所以这里是我的解决方案:

body { margin: 0; background: #CCCCCC; } div.page { margin: 10px auto; border: solid 1px black; display: block; page-break-after: always; width: 209mm; height: 296mm; overflow: hidden; background: white; } div.landscape-parent { width: 296mm; height: 209mm; } div.landscape { width: 296mm; height: 209mm; } div.content { padding: 10mm; } body, div, td { font-size: 13px; font-family: Verdana; } @media print { body { background: none; } div.page { width: 209mm; height: 296mm; } div.landscape { transform: rotate(270deg) translate(-296mm, 0); transform-origin: 0 0; } div.portrait, div.landscape, div.page { margin: 0; padding: 0; border: none; background: none; } } <div class="page"> <div class="content"> First page in Portrait mode </div> </div> <div class="page landscape-parent"> <div class="landscape"> <div class="content"> Second page in Landscape mode (correctly shows horizontally in browser and prints rotated in printer) </div> </div> </div> <div class="page"> <div class="content"> Third page in Portrait mode </div> </div>

引用自css - discussion Wiki

The @page rule has been cut down in scope from CSS2 to CSS2.1. The full CSS2 @page rule was reportedly implemented only in Opera (and buggily even then). My own testing shows that IE and Firefox don't support @page at all. According to the now-obsolescent CSS2 spec section 13.2.2 it is possible to override the user's setting of orientation and (for example) force printing in Landscape but the relevant "size" property has been dropped from CSS2.1, consistent with the fact that no current browser supports it. It has been reinstated in the CSS3 Paged Media module but note that this is only a Working Draft (as at July 2009). Conclusion: forget about @page for the present. If you feel your document needs to be printed in Landscape orientation, ask yourself if you can instead make your design more fluid. If you really can't (perhaps because the document contains data tables with many columns, for example), you will need to advise the user to set the orientation to Landscape and perhaps outline how to do it in the most common browsers. Of course, some browsers have a print fit-to-width (shrink-to-fit) feature (e.g. Opera, Firefox, IE7) but it's inadvisable to rely on users having this facility or having it switched on.

试着添加这样的CSS:

@page {
  size: landscape;
}

我面临的问题可能和你一样。这里的每个人都使用CSS来静态地提供它，但我不得不寻找一个动态的解决方案，这样它就会根据活动元素而改变，而无需重新加载页面。

我创建了两个文件，肖像。css和风景。css。

Portrait.css是空的，但是landscape.css只有一行。

@media print{@page {size: landscape}}

在我的主文件中，我添加了这一行html来指定portrait.css为默认值。

 <link rel="stylesheet" id="PRINTLAYOUT" href="portrait.css" type="text/css" /></link>

现在，要切换，你只需要改变元素中的href来切换打印模式。

$("#PRINTLAYOUT").attr("href","landscape.css")
  // OR 
document.getElementById("PRINTLAYOUT").href = "landscape.css" // I think...

这对我来说很有效，我希望它能帮助其他人像我一样做艰难的事情。注意，$表示JQuery..如果你还没有使用它，我强烈建议你现在就开始使用。

我用横向设置创建了一个空白的MS文档，然后在记事本中打开它。复制并粘贴以下内容到我的html页面

<style type="text/css" media="print">
   @page Section1
    {size:11 8.5in;
    margin:.5in 13.6pt 0in 13.6pt;
    mso-header-margin:.5in;
    mso-footer-margin:.5in;
    mso-paper-source:4;}
div.Section1
    {page:Section1;}
</style>



<div class="Section1"> put  text / images / other stuff  </div>

打印预览以横向大小显示页面。这似乎在IE和Chrome上工作得很好，没有在FF上测试。