details, summary { display: block; }

[paulirish]

The polyfill sets details > summary { display: block; }. Forcing details to be block seems necessary.

useragent stylesheets set block on both:

• https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/css/html.css?l=1072-1078&rcl=50e2edfb0996b46542326091721e91e3ba03a853
• https://github.com/WebKit/webkit/blob/33f8dd96b36793b2ae01c5dc6d6a697382ec3807/Source/WebCore/css/html.css#L1218-L1224

wdyt about

details, summary {   display: block; }

thx

[javan]

👍

[javan]

Just published v2.1.0 with this change