btn.btn-default.btn-primary.btn-success.btn-info.btn-warning.btn-danger.btn-link.
- btn.
- btn-default.
- btn-primary.
- btn-success.
- btn-info.
- btn-warning.
- btn-danger.
- btn-link.
The class . active makes a button appear pressed, and the disabled attribute makes a button unclickable. Note that <a> elements do not support the disabled attribute and must therefore use the . disabled class to make it visually appear disabled.