Bug with @media and prefix

sage
1

Hi,
When I use @media:

 /* Portrait tablet to landscape and desktop */                                                              
 @media(min-width:768px) and (max-width:979px) {                                                               
     background-color: red;                                                                                      
 }

Grunt return this:

Running "autoprefixer:dev" (autoprefixer) task
Warning: assets/css/main.css:6301:1: Unclosed block Use --force to continue.

Aborted due to warnings.
2

This is not a bug, you have an error in your syntax.

3

Thanks, for that.
I forgot the rule :frowning: