DIVI theme needs fixing

We have a site which is almost done and has a few snags we can't fix. The orginal developer has let us down.

http://majorfamilylaw.uk.w3pcloud.com/

I need to get these sorted ASAP this week - they are in a DIVI theme and some elements have been tweaked with CSS which seems to affect others when we fix one.... I'm being honest - don't want you to say yes and then wish you hadn't!

Here's a link to our dropbox paper of the updates and visuals;
https://paper.dropbox.com/doc/MFL-Site-Updates--A4qkhPaQMubPdsC~c8Zm1F2kAQ-fvbNBReKu49dZBtlDH62e

Can you help?