你即將離開本站

並前往https://www.w3.org/wiki/CSS/Selectors/pseudo-elements/:before

CSS/Selectors/pseudo-elements/:before - W3C Wiki

The ::before pseudo-element can be used to describe generated content before an element's content. Syntax. selector::before{ preperties }. Point, Note.

確定！ 回上一頁

查詢 「css ::before」的人也找了：

  1. css before after用法
    2.
  2. css before after範例
    3.
  3. CSS before after
    4.
  4. CSS before ( content)
    5.
  5. CSS before image
    6.
  6. CSS before not working
    7.
  7. css ::after
    8.
  8. CSS before ( content icon)
    9.