CSS选择器优先级说明_html/css_WEB-ITnose:原文：https://www.w3.org/TR/CSS2/cascade.html#computed-value Some examples: * {} /* a=0 b=0 c=0 d=0 -> specificity = 0,0,0,0 */ li {} /* a=0 b=0 c=0 d=1 -> specificity = 0,0,0,1 */