Adding a block for an image without taking up the whole width of the page

Hi,

I wanted to add a few images to blog pages I'd done, but when I add the block it takes up the whole width of the page. I have comprised for now by making the images a bit larger than intended and centred them, but it doesn't look good.

Ideally, the image would be set to the left or right with fext running alongside it.

I suppose this is quite a basic thing and should know how to do, but I am still waiting patiently for your Idiots Guide to GeneratePress.

Thanks,

Mike