It's a CSS child selector. P > SPAN
means applying the style that follows to all SPAN tags that are children of a P
tag.
Note that "child" means "immediate descendant", not just any descendant. P SPAN
is a descendant selector, applying the style that follows to all SPAN
tags that are children of a P
tag or recursively children of any other tag that is a child/descendant of a P
tag. P > SPAN
only applies to SPAN
tags that are children of a P
tag.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…