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                # :last-of-type 和 :first-of-type的誤用 someselector:last-of-type不僅與someselector這個選擇器相關,還與符合該選擇器的元素的標簽相關。 再看一下W3C的說明: > The :last-of-type pseudo-class represents an element that is the last sibling of its type in the list of children of its parent element. > 這里所謂 the last sibling of its type其實講得并不是很清楚,但仔細琢磨,這里的type的意思應該就是不僅僅與選擇器相關,還與標簽相關。 <iframe width="100%" height="300" src="//jsrun.net/GBiKp/embedded/all/light/" allowfullscreen="allowfullscreen" frameborder="0"></iframe> 從中可以看出,選擇器首先會找到父元素下相同的標簽,如果class相同,則選中,否則不會選中。
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