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Selectors - W3C

The following table summarizes CSS 2.1 selector syntax: ... Thus, special formatting only occurs when H1 has class="opener" :

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查詢 「CSS has class」的人也找了：

  1. CSS has
    2.
  2. CSS has class
    3.
  3. CSS has child with class
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  4. CSS not
    5.
  5. css :empty
    6.
  6. CSS parent
    7.
  7. CSS select: text
    8.
  8. CSS not child
    9.