.icono-meh{
    @extend .icono-smile
    &:before{
        @extend .icono-smile:before

}
    &:after{
        @extend .icono-smile:after
        top: 0;
        width: $12;
        border-left-width: 0;
        border-right-width: 0;
        border-radius: 0;

}

}