insertBefore() with multiple selectors class

Question

I try to do that :

$("<div class='line line1'></div>").insertBefore(".anim-letters .wpb_wrapper .text-wrapper");

The div is insert after .anim-letters and no after .text-wrapper why ? I'm obliged to add that with jquery because it will be so difficult to find the line in php code of wordpress plugin.

Answer 1

我已经解决了我的问题，但是我想知道为什么insertBefore（）无法做同样的事情。

$(".text-wrapper").prepend("<div class='line line1'></div>");