How to add floating effects to elements

Floating is an effect to change element’s position smoothly when scrolling page. If you want to know how floating effects work, please check following urls.
https://www.portotheme.com/wordpress/porto/seo/
https://www.portotheme.com/wordpress/porto/shop31/

Custom Heading, Button and Single Image elements support floating effect.

• Floating Start Pos: Speificy the start position of element: None, Top or Bottom.
• Floating Speed: Floating speed
• Floating Transition: specify if using css transition
• Floating Horizontal: if check this option, element should move in only horizontal way.