The curriculum of Web Application has been designed by CBSE with a vision to fulfill the increasing demand for expertise in the area of Website development. This book aims to proving an in-depth understanding of the Class XI Curriculum of the abovementioned course. The key concept behind this book is it's task based approach which implies learning through application. The topics covered are best understood through practical examples. Each chapter has been supplemented with these examples which are given in a graded, manner to make the process of learning simple and effective