Hello,
1. Add this code in custom.css file to fix the issue with quantity on mobile device:
@media (max-width: 480px) {.single-product-page .quantity-box label { width: auto !important; }}
Sorry, but quantity arrows were modified by Woocommerce and not the theme. This is their customization.
2. Please add this code in custom.css file:
.product-thumbnails-slider { width: 100% !important; }
3. Please show a screenshot where you see that information.
4. Please read WordPress documentation http://codex.wordpress.org/Child_Themes how to create child theme.
Regards, Eva Kemp.
