Marsrover page is not proper for mobile screen

[Utsavladia]

Title of Issue and Pull Request must be Same

Issue number

closes: #468

Video/Screenshots (mandatory)

Checklist:

• [x] I have mentioned the issue number in my Pull Request.
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have gone through the contributing.md file before contributing

Additional context: