Web standards recommend the following font definition method:
body { font-family : "Lucida Grande", Verdana, Lucida, Arial, Helvetica, Song Dynasty, sans-serif; }
* Fonts are selected in the order listed. If the user's computer contains the Lucida Grande font, the document will be designated Lucida Grande. If not, it is designated as the Verdana font, if there is no Verdana, it is designated as the Lucida font, and so on.
* Lucida Grande font is suitable for Mac OS X;
* Verdana font is suitable for all Windows systems; "Suitable for simplified Chinese users;
* If none of the listed fonts are available, the default sans-serif font can be guaranteed to be called.