Add a practical interactive feature to your website: a validated form, price calculator, product options, filters, or a CSV export. I build or adjust a small browser-side component using HTML, CSS and JavaScript. We agree on the fields, rules and expected behavior before work starts. You receive the component, source files, relevant mobile and keyboard checks, and a short handoff. Share the existing page or files and describe what the feature should do. If submissions need to be emailed or stored, I review the available backend or service before quoting. The price and delivery time depend on the agreed scope. All project communication is handled in writing through Contra messages.