HTML Page Bug Fixes

The HTML on one of my existing pages is misbehaving and I need a sharp set of eyes to track down and eliminate the problem areas. You’ll be diving into code that’s already live, so quick, careful diagnostics and clean, standards-compliant fixes are essential. What I already know: this is strictly about fixing issues, not building something new. The symptoms show up in layout, styling, and general page behaviour, but I’d like a full sweep so nothing is missed. Please make sure the corrected page: • Renders consistently across modern browsers and common mobile devices • Uses valid HTML5 and well-organised CSS (inline styles should be removed where possible) • Keeps all existing functionality—forms, links, and buttons must remain intact and responsive When you deliver, I expect the updated HTML/CSS files with a brief changelog explaining what was fixed and why. A quick before/after screenshot set would be appreciated as well.