Applies only to replaced elements. Allows you to define the scaling and position of a replaced element within its rendered box.
Object Fit and Object Position on W3C
A value of "cover" causes this image to overflow its rendered box.

Standard Syntax:
No support
Vendor Prefix:
Opera 10.6+
jQuery.object-fit.js (currently only supports object-fit: contain)
The CSS3 object-fit and object-position properties
Control image aspect ratios with CSS3