CSS first-line pseudo-element

- REC

Allows styling specifically for the first line of text using the ::first-line pseudo-element. Note that only a limited set of properties can be applied.

Chrome

  1. 4 - 125: Supported
  2. 126: Supported
  3. 127 - 129: Supported

Edge

  1. 12 - 124: Supported
  2. 125: Supported

Safari

  1. 3.1 - 17.4: Supported
  2. 17.5: Supported
  3. 17.6 - TP: Supported

Firefox

  1. 2 - 126: Supported
  2. 127: Supported
  3. 128 - 130: Supported

Opera

  1. 9 - 109: Supported
  2. 110: Supported

IE

  1. 5.5 - 8: Partial support
  2. 9 - 10: Supported
  3. 11: Supported

Chrome for Android

  1. 125: Supported

Safari on iOS

  1. 3.2 - 17.4: Supported
  2. 17.5: Supported
  3. 17.6 - 18.0: Supported

Samsung Internet

  1. 4 - 24: Supported
  2. 25: Supported

Opera Mini

  1. all: Supported

Opera Mobile

  1. 10 - 12.1: Supported
  2. 80: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.4.4: Supported
  2. 125: Supported

Firefox for Android

  1. 126: Supported

QQ Browser

  1. 14.9: Supported

Baidu Browser

  1. 13.52: Supported

KaiOS Browser

  1. 2.5: Supported
  2. 3: Supported
Resources:
CSS tricks article
MDN Web Docs - ::first-line