CSS Demo:
- Customize buttons: https://51fe.github.io/angularjs-ui-bootstrap-enhancement/buttons.html
- Align modal center vertically: https://51fe.github.io/angularjs-ui-bootstrap-enhancement/modal.html
- Support dropdown submenu: https://51fe.github.io/angularjs-ui-bootstrap-enhancement/dropdown-submenu.html
Directive demo:
- Customize select: https://51fe.github.io/angularjs-ui-bootstrap-enhancement/select.html