Hi there,
Please add this css on child theme or on custom css plugin editior screen to fixed your issue.
.la-team-social li:hover {
background-color: #908686;
-webkit-transform:none;
transform:none;
}
There in css , you can change value of background color as per your requirement. This also removed twirling icon.
And for facebook icon you need to place as below example
Note : You need to place this in one line on page editor.
@see http://fortawesome.github.io/Font-Awesome/icon/facebook/
Let us know how it will goes
Thanks