3 3.3.0
Card Color & Button
3 4.0.0
button hover effect
3 4.1.1
button hover effects
Hover Button CSS Compilation
Button Effects - Easy CSS
Stylish File Input Button
Facebook Style image button
awesome button hover efftect
Equal height columns with button at bottom
navbar with login form and glyphicon button
Bootstrap Conditional Button Group like Semantic UI
Bootstrap 4 left side sliding menu with arrow button for mobile