The visual design attributes of an error message — its color, size, and location — can clearly distinguish it from the rest of the application's user interface and capture the user's attention.
一条错误消息的可视化设计属性——其颜色、字体大小、位置——可以清晰地将它与应用程序用户界面的其他部分区分开来，引起用户的注意。
That means that if one open TAB encounters an error, the rest of your browsing session remains intact.
这就意味着如果一个开着的页面发生错误，其他的浏览进程都不受影响完好无损。
Your error messages and actions merit as much craftsmanship as the rest of your program.
错误消息及对应操作同程序的其它部分相比，值得花同样多的技术。
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