In this case, because of the leading p, each class can be used only with the paragraph tag.

在这个示例中，因为前面的标记名是P，所以这些类只应用于段落标记。

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Each p: : RD grammar becomes an object blessed into the p: : RD class, with each rule in the grammar as a method you can use to cause actions to happen.

每个P： RD语法成为P： rd类中的一个对象，语法中的每一个规则都可以作为用来执行动作的方法。

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For example, use < p class="12pointsans"> and < h1 class="12pointsans"> to apply the custom class to different elements.

例如，使用 < p class="12pointsans"> 和 < h1 class="12pointsans"> 就可以对这两种不同的元素应用同一个定制类。

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The National Association for Sport and Physical Education says twenty to thirty students in a P.E.class should be the limit.

VOA: special.2009.08.06

Foremost among the recommendations: the safety board said all of the unlimited class aircraft like the P-51 Mustang should be made to demonstrate their airworthiness at racing speeds before participating in a public air race.

CNN: NTSB: Pilot overwhelmed by g-forces in Reno crash

As a result, the Class 2A final would be played at 2 p.m.

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In 2002, PC World awarded its World Class Award for ultralight notebooks to the Fujitsu LifeBook P-2000.

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