The Share Button allows people to add a personalized message to links before sharing on their timeline, in groups, or to their friends via a Facebook Message.

Content Settings

• Alignment - set button's position on the page.
• Add URL to share the post.
• Choose button's layout. 
• Set button size.
• Wrapper width - set width of the button.
• Mobile Iframe - show the share dialog in an iframe on mobile.
• Locale -  choose locale for button.
• App ID - add Facebook application ID. It's optional (allowed one unique facebook application id per page).

Advanced Settings

1. Element Style (margin, padding, entrance appearance).
2. Background & Border (type, radius, box shadow).
3. Responsive (hide or show it on a desktop, tablet, mobile).