Hi! I'm making my site using the Adirondack template and I think the website site is too big that even just my homepage banner covers almost my whole screen. I want to decrease the size of MY WHOLE WEBSITE, as in the area where all the content is, but there is no option to resize site on the "Sizes and Values" section like other templates. I created a support ticket for this and they told me I can only do this using a custom CSS code and they can't help me with that. I want to reduce the size by about 20% but I have no knowledge about coding.
Please help me out with the code. Thanks.