No "OK" button for option in "TrySolidworks"

I'm using the online version of solidworks accesible in the "trysolidworks" place in Mysolidworks. 

 

I'm following the tutorial. 

 

We are asked to change some parameters in tools ---> option.

 

BUT : There is no "OK" button to validate the changes in the option menu. 

 

This is a malfunction of the app i think.