Blog & Product picture issue for Dawn theme

[SiegfriedY]

Hi:

Recently I switch to the Dawn theme. It's a good the, but some issues really bother me,

1, When I write a blog, the header image is too big in desktop mode (it works fine in mobile mode), how can I adjust the width by some coding?

2. When I'm in the product page, one thing really troubles me in desktop mode, 

 image in product page, it looks fine.

 If I click any image (example, the one in the top-right), then the image will enlarge and occupy whole screen. I have to click ESC to cancel the image so I can see product information.  Can this "enlarge process" can be turn off?

[dmwwebartisan]

@SiegfriedY 

Please share store URL!

Thanks!

[SiegfriedY]

Hi @dmwwebartisan 
Please refer to the Url .
Problem 1-still there.

Problem 2 - product image too large, I already solved by survey other article.

But I have a new problem. The video in homepage is also too big. Please also share your solution to adjust the video size.

Thanks.