Place a block directly into a page

Is it possible to place a block directly into a page's content in drupal 8? I would prefer to integrate a block with the rest of the page rather than have it as a standalone block. The block I'm trying to use is the simplenews block but it appears like the form changes when a page reloads and this causes the form to not do anything. I tried grabbing the html code for the block and pasting it into the page but this seems to make the form stop working. Basically it makes it so you can input your email like normal but after you press the subscribe button it reloads the page but doesn't add the email to the subscriber list whereas if I was to just use the form in the block, it works fine.

Any help on this would be greatly appreciated as I'm not the best at using Drupal!!

Many thanks,
Darren