Use button classes on an <a>,<button>,or <input>element.
Use the .btn-outline-*classes to create bordered buttons.
Add roundedto buttons to get large rounded corners.
Use the .btn-outline-*and .btn-roundedclasses together to quickly create bordered buttons with large rounded corners.
Add .btn-lgor .btn-smclasses for additional button sizes.
Add icons to any button or even use Icon-only buttons.
Create block level buttons,by adding add .btn-block.
Create a group of buttons by wrapping with .btn-group.
Add the disabledattribute to disable buttons.