Updated CSS
The following issues are fixed :
- Updated CSS in all experiments and lab landing pages
- Fixed all broken links
- Format the HTML file with correct indentation in all HTML pages
- Commenting unnecessary code
- Remove target="_blank" in order to open links in the same page for all experiments
- Fix console errors of lab landing pages and all experiments
- “Simulation” is named as “Experiment”, change it to Simulation
- Update the header (logo and the links)with correct links