Unexpected token caused after the comma when using multiple selectors on separate lines.

This works:

``` css
.r-nav-li:nth-child(1):before, .r-nav-li:nth-child(1):after {
    font-family: FontAwesome;
    display: inline-block;

}
```

This throws unexpected token error at `.r-nav-li:nth-child(1):after`:

``` css
.r-nav-li:nth-child(1):before,
.r-nav-li:nth-child(1):after {
    font-family: FontAwesome;
    display: inline-block;

}
```
