What is Responsive Design?
Design that adapts to different screen sizes and devices.
Definition
Responsive design ensures that landing pages, emails, and web content display correctly across all screen sizes — desktop, tablet, and mobile. With 60-80% of e-commerce ad traffic coming from mobile devices, responsive design is non-negotiable. Key elements include fluid grids, flexible images, readable font sizes (minimum 16px on mobile), touch-friendly buttons (minimum 44px tap targets), and fast load times on cellular networks.
Example
A brand discovers their landing page has a 78% mobile bounce rate because the CTA button is too small and the form has 8 fields. After implementing responsive design with a large tap-target CTA and a 3-field mobile form, mobile conversions increase 40%.
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