3 3.3.0
BS3 - Block Button Groups with hover fade effect| Split-dropdown-Block, Button Block Group, and Dropdown-Block Group
3 3.0.0
button
button box
flat button
Button Shape
button snipets
button anime
button styles bs3
3 4.1.1
Button Switch
Button Switch V2
Navbar with toggle button v2.0 (only CSS)