CSS Positioning

[gunjan-g]

Description

Added notes for CSS positioning

Fixes #85

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works

ATTACH SCREEN-SHOTS / DEPLOYMENT LINK

[gunjan-g]

@Sanskriti2401 please review the pr