最外層的body
div (grandparent)
p (direct parent)
span
div (great-grandparent)
ul (grandparent)
li (direct parent)
span
div (great-grandparent)
ul (grandparent)
li (direct parent)
span
body (great-great-grandparent)
div (great-grandparent)
ul (grandparent)
li (direct parent)
span