问题
In all the tutorials I found around the web on animating scrolling of the page with jQuery, I found that most of them are using the following code to do that:
$("html, body").animate(....
I was trying to find out why it's needed to animate 2 objects: html and body, but not luck. I might think it's needed to cover all major browsers… But why really, can someone explain please?
回答1:
chrome/safari uses html to animate, while firefox uses body (might be the other way around, don't remember!)
You could just use $(window).animate.
来源：https://stackoverflow.com/questions/9769630/why-jquery-has-to-receive-2-objects-body-html-when-scrolling-whole-page-with