Preview is rather strange with style with no citation numbers
Here is the style:
https://gist.github.com/munrobasher/7e8e947e83efc0aacce5d82c6be97152
And this is how the preview looks:
https://www.dropbox.com/s/plwf56w0sg9h5bc/zotero1.png?dl=0
Comment line 195 back in and it previews okay:
https://www.dropbox.com/s/5g5upn1njd7a6ip/zotero2.png?dl=0
But it previews fine in Word with the line comment out so not too worried:
https://www.dropbox.com/s/dnfywzrq0fjb8ex/zotero3.png?dl=0
Have find a few instances where the preview window displays different output to when used in Word.
https://gist.github.com/munrobasher/7e8e947e83efc0aacce5d82c6be97152
And this is how the preview looks:
https://www.dropbox.com/s/plwf56w0sg9h5bc/zotero1.png?dl=0
Comment line 195 back in and it previews okay:
https://www.dropbox.com/s/5g5upn1njd7a6ip/zotero2.png?dl=0
But it previews fine in Word with the line comment out so not too worried:
https://www.dropbox.com/s/dnfywzrq0fjb8ex/zotero3.png?dl=0
Have find a few instances where the preview window displays different output to when used in Word.
second-field-align="flush"
in the style. That does exactly what you're seeing in the comment, i.e. put the first element (which in your case is the entire citation) into the left margin.