.icono-crop{
    square($21);
    @extend .icono-stroke
    border-left: none;
    border-bottom: none;
    margin: $9 $9 $4 $4;
    &:before{
        position: absolute;
        square($21);
        @extend .icono-stroke
        top: -1*$7;
        right: -1*$7;
        border-top: none;
        border-right: none;
        box-sizing: border-box;

}
    &:after{
        position: absolute;
        width: $27;
        height: $1;
        left: $2;
        top: $3;
        box-shadow: inset 0 0 0 $32;
        transform: rotate(-45deg);

}

}