该页面中浏览器中的显示效果如图11所示。
When I bring up the page in my browser, I see something like Figure 11.
这种应变行为可用于改善object元素的效果，如清单4所示。
This fallback behavior is used to good effect with the object element, as shown in Listing 4.
下一步是创建能够将初始图标包装起来并用图1所示的图形效果给图标着色的rollovericon类。
The next step is to create the RolloverIcon class that is able to wrap an original icon and paint it with the desired graphics effect shown in Figure 1.
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