Ladda a beautiful user interface approach of integrating progress indicators in HTML buttons. It give a nice user experience as it immediately gives feedback to user that his/her requested operation is underway.

A Responsive Drop Down Navigation bar menu built using Bootstrap and jQuery. Complete HTML CSS and JavaScript code is as below.

Almost all the business Web application have a back-end administration panel. ng2-admin is designd for those applications. ng2-admin is a front-end Admin Dashboard template based on Angular 2, Bootstrap 4 and Webpack.

SB Admin 2 is a free responsive premium Bootstrap based Admin Panel Template. It features a dashboard template, a web-app UI starter. SB Admin 2 is an enhancement over its old SB Admin Template theme.

AdminLTE is a lightweight, featured pack, open source and fully responsive Admin Panel template. It is built using Bootstrap 3 framework and features six themes and can be configured for more.