Foldable phones are no longer a niche; they are a significant part of the mobile market. Responsive design now means much more than just "mobile" and "desktop."
The "Spanning" Problem
When a device is half-folded, you need to ensure important content isn't cut off by the hinge.
CSS Environment Variables
CSS now includes viewport-segment variables to help you detect and adapt to these screens.
@media (spanning: single-fold-vertical) {
.container {
padding-right: env(viewport-segment-width 0 0);
}
}UX Opportunities:
- Dual Pane Layouts: Show the list on one side and the details on the other.
- Tabletop Mode: Adapt your video player or camera UI when the device is propped up.
Staying ahead of device trends is how you keep your products feeling modern and premium.