I am using a Velocity template at https://kingstonfestival2016.ca
. One page on the site is a "Gallery" of photos, and I'd like to change the page background to black in order to enhance the pictures. I have a description at the page top, followed by a couple of dozen pictures, all set to "float:left". I have created a <div> on the page with a black background, but the trouble is that the images' "float" property does not allow the background to expand downwards with the photos. I've set the images in rows of four, but in a responsive layout for smaller screens, the rows may contain only three, two, or even one picture per row, and hence the height of the div increases!
I've tried using the custom_4 module, which looks great, but it will only load way down the page as a "below-the-maincontent module". What I want is to make the whole page
look like that module.