一个可以实时浏览网页的 例子，里面有相应类，可以方便现实网页和htm等文件，基于ie-An example of real-time browsing the web, there are corresponding classes, the reality can be easily and htm pages and other documents, ie based

熟悉编写定义各种样式表CSS，练习各种调用样式表的方法：嵌入式样式、链接样式文件、导入样式、内联样式、自定义样式类。-Familiar with the preparation of a variety of defined style sheets CSS, practicing various methods of calling stylesheets: embedded styles, link styles file, import styles, inline styles, cus