Add Box and Border to Pluggins and separate rom Post

For design purposes I would like to have plugins such as social author and others be in their own box, border and background. This blog has them below posts slightly separated:
https://rayhigdon.com/7-ways-to-know-they-are-not-right-for-your-mlm-team/#

But I do not know how to isolate and separate them, this a post from my blog:
https://www.zanderwoodford-smith.com/numis-network/numis-network-introduction-6-keys-to-picking-an-opportunity/

As you can see everything just runs into the post background. How can I resolve this?