Hello Omar,
It works finde with the keyboard arrows. Okay, then it seems to be an error in the theme JS. I already changed it, because it does only parse integers. But my JS is not the best and it doesn’t work with mobile chorme (mobile firefox works fine). Maybe someone can help me:
productQuantityAdjust: function() {
// Increase
jQuery(document).on('click', '.qty-plus', function(e) {
e.preventDefault();
var quantityInput = jQuery(this).parents('.quantity').find('input.qty'),
step = parseFloat(quantityInput.attr('step'), 10),
newValue = parseFloat(quantityInput.val(), 10) + step,
maxValue = parseFloat(quantityInput.attr('max'), 10);
if (!maxValue) {
maxValue = 9999999999;
}
if ( newValue = minValue ) {
quantityInput.val(newValue);
quantityInput.change();
}
});
}