Vaadin, Valo , exclude border around dashboard page

I am working with Vaadin 7.6 and Valo theme and have problem with  excluding   border-left  setting  for  valotheme .

In my application  , border left around  dashboard is defined  on this way :
.valotheme {    border-left: 1px solid #414141;}

I want to achive this 
.valotheme {    /*border-left: 1px solid #414141; */ }

How I can do that;

thanks for any help.
 

Have you tried giving it e.g. border-left: none; instead of just commenting it out? If that line overrides anything else, just commenting it out will give you that overridden version instead of nothing.

Anna

I solved my problem .  Border-left  settings  was  writen  out of  any style definition in one place in my scss file  .

when I  remove  that everuthing was ok.  

thanks so much