code: function() {
  		var s = document.createElement('p').style, // 's' for style. better to create an element if body yet to exist
  			v = ['ms','O','Moz','Webkit']; // 'v' for vendor
  
  		if( s['transition'] !== undefined ) {
  			return true; 
  		}
  			
  		while( v.length ) {
  			if( v.pop() + 'Transition' in s ) {
  				return true;
  			}
  		}
  				
  		return false;
  	}
docs: Private functions