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.