Website styling issue (possible CSS related)

We have an issue with our website (www.hive.hr) that we currently can't figure out.

Every so often even when the site hasn't been edited all the content will squash together like the spacing has been removed (see attached example image). This issue also occurs when I use the Enable Media Replace option to update an image in our media library.
A second issue we're getting is a spacing related issue - when I edit parts of the homepage e.g. the G2 badges at the top of the page all of the items appear really spaced out (see attached image).

So it appears like there is something going on with the spacing, possibly in our CSS but I'm not an expert so don't know how to address it or where to look in any error logs etc so we'd be looking for someone who could identify what is happening and show us how to address it if it comes up again in the future.

Also attached is an image of how the site should look (e.g. with the correct amount of spacing).

Please drop me a line if you have any further questions on this.

(Please note for payment reasons, we can only work with those within the UK.)