Resolve CSS issues: Correct invalid selectors and enhance hover effects

[AlexMercer00]

• Removed Redundant Properties:

  • Deleted z-index: -1; from .course-col, .campus-col, .facilities-col, and .testimonials-col selectors.

• Adjusted Hover Effect:

  • Changed hover effect in .course-col from transform: scale(1.5); to transform: scale(1.1); for a more subtle effect.

• Responsive Design Improvements:

  • Ensured responsiveness of .nav-links for various screen sizes, with a focus on mobile devices.
  • Enhanced layout and styling for smaller screens.

• Optimized CSS:

  • Reviewed and optimized the CSS code for better efficiency.

• General Cleanup:

  • Removed redundant or unused selectors, properties, and rules from the codebase.