Hello,
Add the below code to Theme Options > Custom CSS to increase the size of the q-ty on the cart page
@media only screen and (max-width: 480px) {
table.cart .quantity {
height: 55px;
}
table.cart .product-quantity .quantity input[type=number] {
min-width: 60px;
}
table.cart .product-quantity span.minus, table.cart .product-quantity span.plus {
width: 30px;
}
}
If iPhone detects the input number then it places the cursor to enter the number, so we can’t change that behavior.
Regards