Few question for mobile version

Hi

I am working on a website and when I check my website on my iphone, I find some problems on my sites.

  1. There is a big space between the header and content. Is there any way to remove it?
    https://cldup.com/M66MEkEUe1.jpg

  2. I dont have this blue background color on my web but it shows up on my cell phone. How do I make it white
    https://cldup.com/4YvDQt3HlT.jpg

  3. The footer is too big, can I make it small?
    https://cldup.com/-4vQB9qYJX.jpg

  4. In about page, my text is cropped. How can I make it uncrop?
    https://cldup.com/9VFmNZsky7.jpg

5.I got this banner on my every page but I think the mobile version resize it so it
is not showing right. It suppose be full width.

  1. Mty contact page is cropped as well.
    https://cldup.com/7HaUURGFtl.jpg

  2. I find that every has this space on both side but all column should be full width.
    https://cldup.com/qKCJcKktdo.jpg

That’s all my problem so far and here is my link
http://initi.com.tw/

Thanks