How do I resize banners and remove white space

Hi, I have check other articles but I guess thing may have changed as I cant find the theme.css. Here is my page https://bottleque.com . As you can see my images are too big. If I resize the actual image smaller the quality is bad. I want the image much smaller. There is also a big white space between the header and the image I cant reduce. Any Help Please?

1 Like

It is just the banner–text that is empty. If you are not utilizing it, you can just hide it using the code below. 1. Go to your Admin store

@andyp00

can you please share issue image so i will guide

Missing the code??

Reducing the size of this image. Its too big. Resizing the actual image does not work.