This application is explained in detail in the book "Creating Android Application Series Using HTML, Javascript, CSS, PHP and MYSQL: Creating Marketplace Applications for SMEs".
The method used in this book is "Learning by Example".
This application is a version that only uses pure HTML Javascript and CSS.
There is another version that uses an online database.
Hosting that is used in this application uses free hosting, with the aim of proving that this application can be implemented on any hosting without spending a fee.
Because it is placed on free hosting, please understand that the application response is rather slow.
For buyers of this book will be included in a special group to conduct question and answer about the discussion of this book.