This tried and true layout is the best template for gig economy or reverse auction marketplaces.

Offer Cart is designed to be flexible and customizable, so you can design a unique site that fits your brand. Powered by the latest Warp 7 framework, Offer Cart is built with a lightweight html and CSS backend that adheres to responsive design principles, so it looks great across different browsers, screen sizes, and devices, including desktop, tablet, and mobile. Since all graphics are generated using CSS, making changes is easier than ever before.