parent selector
Description: Select all elements that have at least one child node (either an element or text).
version added: 1.0jQuery( ":parent" )
This is the inverse of :empty.
One important thing to note regarding the use of :parent (and :empty) is that child nodes include text nodes.
The W3C recommends that the <p> element have at least one child node, even if that child is merely text (see 登录查看完整内容
