2021

CSS properties that became available in major browsers throughout 2021.

where

selector
MDN Document
Browser Support

  • Chrome

    v88+
    2021-01-19

  • Edge

    v88+
    2021-01-21

  • Safari

    v14+
    2020-09-16

  • Safari (iOS)

    v14+
    2020-09-16

  • Firefox

    v78+
    2020-06-30

autofill

selector
MDN Document
Browser Support

  • Chrome

    v110+
    2023-02-07
    Prefixed
    from v1
    -webkit-autofill

  • Edge

    v110+
    2023-02-09
    Prefixed
    from v79
    -webkit-autofill

  • Safari

    v15+
    2021-09-20
    Prefixed
    from v3
    -webkit-autofill

  • Safari (iOS)

    v15+
    2021-09-20
    Prefixed
    from v1
    -webkit-autofill

  • Firefox

    v86+
    2021-02-23
    Prefixed
    from v86
    -webkit-autofill

text-decoration-thickness

property
MDN Document
Browser Support

  • Chrome

    v89+
    2021-03-02

  • Edge

    v89+
    2021-03-04

  • Safari

    v12.1+
    2019-03-25

  • Safari (iOS)

    v12.2+
    2019-03-25

  • Firefox

    v70+
    2019-10-22

border-block

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

border-block-color

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

border-block-style

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

border-block-width

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

border-inline

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

border-inline-color

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

border-inline-style

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

border-inline-width

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

inset

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

inset-block

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v63+
    2018-10-23
    Fallback
    v41 - v63
    offset-block

inset-block-end

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v63+
    2018-10-23
    Fallback
    v41 - v63
    offset-block-end

inset-block-start

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v63+
    2018-10-23
    Fallback
    v41 - v63
    offset-block-start

inset-inline

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v63+
    2018-10-23
    Fallback
    v41 - v63
    offset-inline

inset-inline-end

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v63+
    2018-10-23
    Fallback
    v41 - v63
    offset-inline-end

inset-inline-start

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v63+
    2018-10-23
    Fallback
    v41 - v63
    offset-inline-start

margin-block

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

margin-inline

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

padding-block

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

padding-inline

property
MDN Document
Browser Support

  • Chrome

    v87+
    2020-11-17

  • Edge

    v87+
    2020-11-19

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v66+
    2019-03-19

scroll-padding

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v68+
    2019-07-09

scroll-padding-bottom

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v68+
    2019-07-09

scroll-padding-left

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v68+
    2019-07-09

scroll-padding-right

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v68+
    2019-07-09

scroll-padding-top

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v14.1+
    2021-04-26

  • Safari (iOS)

    v14.5+
    2021-04-26

  • Firefox

    v68+
    2019-07-09

scroll-margin

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v14.1+
    2021-04-26
    Fallback
    from v11
    scroll-snap-margin

  • Safari (iOS)

    v14.5+
    2021-04-26
    Fallback
    from v11
    scroll-snap-margin

  • Firefox

    v90+
    2021-07-13

aspect-ratio

property
MDN Document
Browser Support

  • Chrome

    v88+
    2021-01-19

  • Edge

    v88+
    2021-01-21

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v89+
    2021-06-01

border-end-end-radius

property
MDN Document
Browser Support

  • Chrome

    v89+
    2021-03-02

  • Edge

    v89+
    2021-03-04

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v66+
    2019-03-19

border-end-start-radius

property
MDN Document
Browser Support

  • Chrome

    v89+
    2021-03-02

  • Edge

    v89+
    2021-03-04

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v66+
    2019-03-19

border-start-end-radius

property
MDN Document
Browser Support

  • Chrome

    v89+
    2021-03-02

  • Edge

    v89+
    2021-03-04

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v66+
    2019-03-19

border-start-start-radius

property
MDN Document
Browser Support

  • Chrome

    v89+
    2021-03-02

  • Edge

    v89+
    2021-03-04

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v66+
    2019-03-19

scroll-margin-block

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-margin-block-end

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-margin-block-start

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-margin-inline

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-margin-inline-end

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-margin-inline-start

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-padding-block

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-padding-block-end

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-padding-block-start

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-padding-inline

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-padding-inline-end

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09

scroll-padding-inline-start

property
MDN Document
Browser Support

  • Chrome

    v69+
    2018-09-04

  • Edge

    v79+
    2020-01-15

  • Safari

    v15+
    2021-09-20

  • Safari (iOS)

    v15+
    2021-09-20

  • Firefox

    v68+
    2019-07-09