Make background transparent

CSS Codes Facebook Feed
1

Add this code to the Custom CSS field on the More tab of your Facebook Feed widget’s settings:

.eapps-facebook-feed .eapps-facebook-feed-inner {
  background-color: transparent;
  border: none;
}
.eapps-facebook-feed .eapps-facebook-feed-posts-inner {
  border-top: none;
}