fixed #[634] #[635] #[636] questions tags overflow , sidebar typo , videoduration positioning

[soravang81]

PR Fixes:

• 1 Questions tags overflow
• 2 Sidebar typo
• 3 Video duration positioning

Resolves #[634] #[635] #[636]

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [x] I assure there is no similar/duplicate pull request regarding same issue