Core contributors have opened a call for testing for responsive styling, a feature planned for WordPress 7.1 that lets you change how a block looks on tablet and mobile without writing custom CSS.
What responsive styling actually does
Right now, if you want a heading smaller on mobile or a section to use different spacing on tablet, you either write custom CSS or reach for a page builder like Elementor or Divi, which have offered this for years. The new feature brings that capability into core WordPress. You turn on “Responsive editing” from the device-preview dropdown in the editor, switch the canvas to tablet or mobile, and adjust a style, such as font size, spacing, or color. That change saves only for the device you picked. A badge in the block inspector shows you which device you’re currently editing, so you don’t lose track of which changes apply where.
Why this matters for your site
If you’ve ever squinted at your site on a phone and wished a heading were smaller or a button had more breathing room, this closes that gap without a plugin or a custom stylesheet. It builds on work already in WordPress 7.0, which let you show or hide entire blocks per device. The 7.1 version goes further: instead of just toggling a block on or off for a screen size, you can fine-tune how it actually looks there.
How to try it
Testers can use WordPress Playground with no setup to try the feature directly. Contributors want feedback on whether style changes actually save correctly after a reload, whether the resize handles and device dropdown stay in sync, and whether the whole workflow feels intuitive. If you run a theme or plugin that touches the editor canvas, it’s worth checking that your code still behaves, since the underlying device-preview model has changed.
What to do now
There’s nothing to install on a live site yet. WordPress 7.1 Beta 1 is due July 15, 2026, with a final release targeted for August 19, 2026. If responsive design has been a pain point for you, this is worth watching, and worth a quick test on Playground if you have five minutes to spare.
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