清单 3 中的简单级联样式表 table.css 在表的偶数行上放置灰色背景。
The simple cascading style sheet in Listing 3, table.css, places a gray background on even lines of the table.
否则，一个简单的查询就能级联地加载整个数据库。
Otherwise, a single query could cascade to loading the entire database.
与颜色和对比度相似，关闭级联样式表是查找问题的最简单方法。
Like the color and contrast, it is easiest to find problems by turning off the Cascading Style Sheets.
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