Can I use
?

Details & Summary elements

- LS

The <details> element generates a simple no-JavaScript widget to show/hide element contents, optionally by clicking on its child <summary> element.

IE

  1. 5.5: Not supported
  2. 6 - 8: Not supported (but has polyfill available)
  3. 9 - 10: Not supported
  4. 11: Not supported

Edge

  1. 12 - 18: Not supported
  2. 79 - 86: Supported
  3. 87: Supported

Firefox

  1. 2: Not supported
  2. 3 - 46: Not supported (but has polyfill available)
  3. 47 - 48: Disabled by default
  4. 49 - 83: Supported
  5. 84: Supported
  6. 85 - 86: Supported

Chrome

  1. 4 - 11: Not supported (but has polyfill available)
  2. 12 - 18: Supported
  3. 19 - 35: Supported
  4. 36 - 86: Supported
  5. 87: Supported
  6. 88 - 90: Supported

Safari

  1. 3.1 - 5.1: Not supported (but has polyfill available)
  2. 6 - 10: Supported
  3. 10.1 - 11.1: Supported
  4. 12 - 13.1: Supported
  5. 14: Supported
  6. TP: Supported

Opera

  1. 9 - 11: Not supported (but has polyfill available)
  2. 11.1 - 12.1: Not supported
  3. 15 - 71: Supported
  4. 72: Supported

iOS Safari

  1. 3.2 - 5.1: Not supported (but has polyfill available)
  2. 6 - 9.3: Supported
  3. 10 - 11.2: Supported
  4. 11.3 - 13.7: Supported
  5. 14: Supported

Opera Mini

  1. all: Not supported (but has polyfill available)

Android Browser

  1. 2.1 - 3: Not supported (but has polyfill available)
  2. 4 - 4.4.4: Supported
  3. 81: Supported

Opera Mobile

  1. 10 - 12.1: Not supported (but has polyfill available)
  2. 59: Supported

Chrome for Android

  1. 87: Supported

Firefox for Android

  1. 83: Supported

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4 - 12.0: Supported
  2. 13.0: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Supported
Resources:
HTML5 Doctor article
Bug on Firefox support
Fallback script
Details Element Polyfill
jQuery fallback script
has.js test
WebPlatform Docs