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CSS outline properties

Last updated on : 2022-04-10

Note:

CSS outline properties shows a browser compatibility score of 100. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.

Overview

Outline properties are used to draw a border around an element, but the shape and style of the outline does not affect layout.

Formal Definition

Inherited

Applies to

all elements

Initial value

outline-color: invert, for browsers supporting it, currentColor for the other outline-style: none outline-width: medium

Animation type

outline-color: a color outline-width: a length outline-style: discrete

Computed value

outline-color: For the keyword invert, the computed value is invert. For the color value, if the value is translucent, the computed value will be the rgba() corresponding one. If it isn't, it will be the rgb() corresponding one. The transparent keyword maps to rgba(0,0,0,0). outline-width: an absolute length; if the keyword none is specified, the computed value is 0 outline-style: as specified

Specifications

CSS Basic User Interface Module Level 4 # outline

Syntax

/* style */
 outline: solid;
 /* color | style */
 outline: #f66 dashed;
 /* style | width */
 outline: inset thick;
 /* color | style | width */
 outline: green solid 3px;
 /* Global values */
 outline: inherit;
 outline: initial;
 outline: revert;
 outline: unset;

Browser Compatibility

CSS outline properties on IE is fully supported on None of the versions, partially supported on 8-11, and not supported on 5.5-7 IE versions.
CSS outline properties on Edge is fully supported on 15-99, partially supported on 12-14, and not supported on below 12 Edge versions.
CSS outline properties on Firefox is fully supported on 2-100, partially supported on None of the versions, and not supported on below 2 Firefox versions.
CSS outline properties on Chrome is fully supported on 4-103, partially supported on None of the versions, and not supported on below 4 Chrome versions.
CSS outline properties on Safari is fully supported on 3.2-15.4, partially supported on None of the versions, and not supported on below 3.2 Safari versions.
CSS outline properties on Opera is fully supported on 11.6-83, partially supported on 9.5-11.1, and not supported on below 9.5 Opera versions.
CSS outline properties on Safari on iOS is fully supported on 3.2-15.4, partially supported on None of the versions, and not supported on below 3.2 Safari on iOS versions.
CSS outline properties on Android Browser is fully supported on 2.3-99, partially supported on None of the versions, and not supported on below 2.3 Android Browser versions.
CSS outline properties on Opera Mobile is fully supported on 12.1-64, partially supported on 10-11, and not supported on below 10 Opera Mobile versions.
CSS outline properties on Chrome for Android is fully supported on 97-100, partially supported on None of the versions, and not supported on below 97 Chrome for Android versions.
CSS outline properties on Firefox for Android is fully supported on 95-98, partially supported on None of the versions, and not supported on below 95 Firefox for Android versions.
CSS outline properties on Samsung Internet is fully supported on 4-16, partially supported on None of the versions, and not supported on below 4 Samsung Internet versions.

100

High

Browser Compatibility Score

High

Browser Support For IE Versions

Fully

8-11

Partially

5.5-7

No Support

Edge

High

Browser Support For Edge Versions

15-99

Fully

12-14

Partially

No Support

Firefox

High

Browser Support For Firefox Versions

2-100

Fully

Partially

No Support

Chrome

High

Browser Support For Chrome Versions

4-103

Fully

Partially

No Support

Safari

High

Browser Support For Safari Versions

3.2-15.4

Fully

Partially

No Support

Opera

High

Browser Support For Opera Versions

11.6-83

Fully

9.5-11.1

Partially

No Support

Safari on iOS

High

Browser Support For Safari on iOS Versions

3.2-15.4

Fully

Partially

No Support

Android Browser

High

Browser Support For Android Browser Versions

2.3-99

Fully

Partially

No Support

Opera Mobile

High

Browser Support For Opera Mobile Versions

12.1-64

Fully

10-11

Partially

No Support

Chrome for Android

High

Browser Support For Chrome for Android Versions

97-100

Fully

Partially

No Support

Firefox for Android

High

Browser Support For Firefox for Android Versions

95-98

Fully

Partially

No Support

Samsung Internet

High

Browser Support For Samsung Internet Versions

4-16

Fully

Partially

No Support

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Last Modified date

2022-04-10