I have a css conflict, so I have to go against an absolute positioning property that deals with some class .myclass. But in one case, I want a div with .myclass class to have a no absolute positioning. So I put position: initial, which works in Chrome, but is it cross-browser? I googled it and found nothing really precise.
The default for position is position: static;
The initial keyword was introduced in 2011 in the Cascading and Inheritance Module -- it's supported in FF 19+, Chrome, Safari, Opera 15+ but is currently not supported in any version of IE.
Even IE 11 gives me the 'squiggles' for this one. Changing to static gave me the desired behavior.
Chrome actually suggests it as an acceptable property in its dropdown
来源：https://stackoverflow.com/questions/15343487/is-position-initial-cross-browser-css