setting background image for the site

Is there like a snippet/example to have a clickable background image

i’m using very basic default templates

body {
/* offsetting image 100px center */
}

then i get confused about howto make the bg image a bit more visible
could you help me on what I should target

thanks

perhaps having a quick look here you could advise me better

https://www.welovetennis.fr/

I don’t seem to find how to set header background transparent ( the megabanner is part of the header based on Header Template 3 )

Thanks again 🙂

• This reply was modified 6 years by cantoute.

to be more precise, i’de like to reduce the white padding on main colomn

I’de want to reduce width of main content of 20px and the left/right padding of rows of 10px

https://pasteboard.co/IxDlH68.png

thanks

finally making some progress
https://pasteboard.co/IxE7kWU.png

but seems putting zone background transparent isn’t enough… should i got for a custom css ? or is there setting i missed

thanks