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Drupal 笔记支持在线聊天啦!

Drupal 笔记支持在线聊天啦!大家快来试试吧,注册用户还可以保存聊天记录哦 :D

CSS 编码规范

Write valid CSS

All CSS code should be valid CSS, preferably to CSS 2.1CSS 3.0 is acceptable too, provided the usage can be justified and the principles of graceful degradation / progressive enhancement are followed.

Concise terminology used in these standards:

selector {
  property: value;
}

Selectors

Selectors should

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