Stupid zoom question

[jaykapalczynski]

Looking at this example...I can see the locate button widget.

I am not seeing where the Zoom in and Zoom out buttons are being defined !

https://developers.arcgis.com/javascript/jssamples/widget_locate.html

[JonathanUihlein]

Make sure you are using the correct CSS file.

[jaykapalczynski]

I have no idea what was going on.....I copied my HTML Page, JS page, and css page....
Erased all code in them. 
Started to bring back the code one piece at a time.  Replaced the code VERBATIM and it works now...There is nothing different between the two projects that I can see....really weird.

I THANK YOU ALL for your thoughts....very helpful and trying to work through these challenges....

Much appreciated.