Can anybody explain simply how I might change the opacity of the window behind blog posts and the sidebar?(To let a slight image of the background through).
(I've found that themes already able to do this through the customisation menus aren't that aesthetically pleasing).
Let me state:
I am new to WP (and blogging/blog design).
I understand from days of reading (& futile attempts) that I will have to edit css or php. And I don't know how to find the elements simply as I have not worked with these before.
The site I'm building is hosted locally so is not visible yet.
I am currently running the free Custom Community theme.