Please note, this is a STATIC archive of website developer.mozilla.org from 03 Nov 2016, cach3.com does not collect or store any user information, there is no "phishing" involved.

文章标签:i

找到 1 篇文档

  • Web/HTML/Element/em HTML 着重元素 ( em ) 标记出需要用户着重阅读的内容, em 元素是可以嵌套的,嵌套层次越深,则其包含的内容被认定为越需要着重阅读。