Add responsiveness and fix bugs

**Description**
Adding responsiveness to the site and fixing bugs.

**Changes**

- [ ] Aligning content.
![image](https://user-images.githubusercontent.com/22374829/118028506-c65b7380-b380-11eb-84ac-0778c3efd185.png)

- [ ] Fix the below-mentioned bug.

https://user-images.githubusercontent.com/22374829/118028578-dbd09d80-b380-11eb-8b3d-8b51acea1413.mp4




