Need help with the mobile version

I have 2 problems need help in my mobile site.

1. How do i get my 2 pictures in the home page in mobile version fit the mobile screen nicely , full width?
Right now it is very small and it doesn’t look good. It is perfect on desktop version.

2. For the menu on mobile, it seems that the dropdown button has lost. i have a dropdown menu under the button of products and press, but in mobile version, both seems disappeared. and if the menu is click from the page of products, the menu couldn’t show it fully.

here’s my website link :

Home

appreciate if anyone can help