Today, more emails are viewed on mobile devices than on desktop devices  (opens in a new tab). This means creating responsive email templates is very important. But it also complicated the underlying HTML. As the spritual successor to MJML (opens in a new tab) – the original responsive HTML email framework – Brail React has responsiveness baked into it from the ground up. By default, the React components provided by Brail are responsive, but this behaviour can also be modified to suit your needs.
The below simple demo shows how responsiveness can behave given different settings.