+ printf '<button class="%s" type="submit" name="vol" value="%s"> </button>' \
+ "$( [ "$n" = "$volume" ] && printf selected
+ [ "$n" = "$((volume - 10))" ] && printf llselected
+ [ "$n" = "$((volume - 5))" ] && printf lselected
+ [ "$n" = "$((volume + 5))" ] && printf gselected
+ [ "$n" = "$((volume + 10))" ] && printf ggselected
+ )" "$n"