QuickStep - Responsive One Page Portfolio Theme QuickStep is a clean and minimal one page portfolio theme. It uses CSS3 to responsively adapt to different screen widths so it looks good on any device. When creating QuickStep, our main goal was to make something that you can take and brand as your own. The extensive admin panel lets you choose your own fonts, colors, and functionality down to the page. QuickStep gives you endless possibilities to customize and make your own site.