</fieldset>
<fieldset class="volume">
$(for n in $(seq 0 5 100); do
- printf '<button class="%s" type="submit" name="vol" value="%s"> </button>' "$([ "$volume" = "$n" ] && printf selected)" "$n"
+ printf '<button class="%s" type="submit" name="vol" value="%s"> </button>' \
+ "$( [ "$n" = "$volume" ] && printf selected
+ [ "$n" = "$((volume - 10))" ] && printf llselected
+ [ "$n" = "$((volume - 5))" ] && printf lselected
+ [ "$n" = "$((volume + 5))" ] && printf gselected
+ [ "$n" = "$((volume + 10))" ] && printf ggselected
+ )" "$n"
done)
</fieldset>
</form>