computed-style.js
static, constant module:computed-style
A safe getComputedStyle with an IE8 fallback.
This is needed because in Firefox, if the player is loaded in an iframe with
display:none, then getComputedStyle returns null, so, we do a null-check to
make sure  that the player doesn't break in these cases.
Parameters:
| Name | Type | Description | 
|---|---|---|
el | 
            
            Element | The element you want the computed style of  | 
        
prop | 
            
            string | The property name you want  |