universal selector

基本解釋

If the universal selector is not the only component of a simple selector, the "*" may be omitted. For example
如果全局選擇符不是一個(gè)簡(jiǎn)單選擇符的唯一內(nèi)容，"*"可以省略。
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A simple selector is either a type selector or universal selector followed immediately by zero or more attribute selectors, ID selectors, or pseudo-classes, in any order.
一個(gè)簡(jiǎn)單選擇符或者是一個(gè)類型選擇符，或者是一個(gè)全局選擇符，緊跟在后的是零個(gè)或多個(gè)屬性選擇符，ID選擇符或偽類，次序任意。
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And, "A simple selector is either a type selector or universal selector followed immediately by zero or more attribute selectors, ID selectors, or pseudo-classes, in any order."
一個(gè)簡(jiǎn)單的選擇器可以是一種類型選擇器或是通用選擇器跟隨零或者更多屬性選擇器，ID選擇器或者偽類，在任何順序。
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