jquery/jquery — pull request #1494 by Mr21 (2014-01-22 21:01:17+00:00)
Title: .css(), the values ​like "+=10%" are now managed (like .animate())

Hi :)

Actually when we make:

$this.animate({width: "+=10%"}, 500);

it's work fine, the value is converted into percentage BUT if we write:

$this.css("width", "+=10%");

We don't have the same behavior...
The .css() function doesn't look the unity, it's "px" every time.