- border
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- Constituent properties
- Syntax
- Values
- Description
- Borders vs. outlines
- Formal definition
- Formal syntax
- Examples
- Setting a pink outset border
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border
The border shorthand CSS property sets an element’s border. It sets the values of border-width , border-style , and border-color .
Try it
Constituent properties
This property is a shorthand for the following CSS properties:
Syntax
/* style */ border: solid; /* width | style */ border: 2px dotted; /* style | color */ border: outset #f33; /* width | style | color */ border: medium dashed green; /* Global values */ border: inherit; border: initial; border: revert; border: revert-layer; border: unset;
The border property may be specified using one, two, or three of the values listed below. The order of the values does not matter.
Note: The border will be invisible if its style is not defined. This is because the style defaults to none .
Values
Sets the thickness of the border. Defaults to medium if absent. See border-width .
Sets the style of the border. Defaults to none if absent. See border-style .
Sets the color of the border. Defaults to currentcolor if absent. See border-color .
Description
As with all shorthand properties, any omitted sub-values will be set to their initial value. Importantly, border cannot be used to specify a custom value for border-image , but instead sets it to its initial value, i.e., none .
The border shorthand is especially useful when you want all four borders to be the same. To make them different from each other, however, you can use the longhand border-width , border-style , and border-color properties, which accept different values for each side. Alternatively, you can target one border at a time with the physical (e.g., border-top ) and logical (e.g., border-block-start ) border properties.
Borders vs. outlines
Borders and outlines are very similar. However, outlines differ from borders in the following ways:
- Outlines never take up space, as they are drawn outside of an element’s content.
- According to the spec, outlines don’t have to be rectangular, although they usually are.
Formal definition
- border-width : as each of the properties of the shorthand:
- border-top-width : medium
- border-right-width : medium
- border-bottom-width : medium
- border-left-width : medium
- border-top-style : none
- border-right-style : none
- border-bottom-style : none
- border-left-style : none
- border-top-color : currentcolor
- border-right-color : currentcolor
- border-bottom-color : currentcolor
- border-left-color : currentcolor
- border-width : as each of the properties of the shorthand:
- border-bottom-width : the absolute length or 0 if border-bottom-style is none or hidden
- border-left-width : the absolute length or 0 if border-left-style is none or hidden
- border-right-width : the absolute length or 0 if border-right-style is none or hidden
- border-top-width : the absolute length or 0 if border-top-style is none or hidden
- border-bottom-style : as specified
- border-left-style : as specified
- border-right-style : as specified
- border-top-style : as specified
- border-bottom-color : computed color
- border-left-color : computed color
- border-right-color : computed color
- border-top-color : computed color
- border-color : as each of the properties of the shorthand:
- border-bottom-color : a color
- border-left-color : a color
- border-right-color : a color
- border-top-color : a color
- border-bottom-width : a length
- border-left-width : a length
- border-right-width : a length
- border-top-width : a length
Formal syntax
border =
||
||=
|
thin |
medium |
thick=
none |
hidden |
dotted |
dashed |
solid |
double |
groove |
ridge |
inset |
outsetExamples
Setting a pink outset border
HTML
div>I have a border, an outline, and a box shadow! Amazing, isn't it?div>
CSS
div border: 0.5rem outset pink; outline: 0.5rem solid khaki; box-shadow: 0 0 0 2rem skyblue; border-radius: 12px; font: bold 1rem sans-serif; margin: 2rem; padding: 1rem; outline-offset: 0.5rem; >
Result
Specifications
Browser compatibility
BCD tables only load in the browser
See also
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This page was last modified on Jul 18, 2023 by MDN contributors.
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Portions of this content are ©1998– 2023 by individual mozilla.org contributors. Content available under a Creative Commons license.CSS Borders
The CSS border properties allow you to specify the style, width, and color of an element’s border.
I have borders on all sides.
I have a red bottom border.
I have a blue left border.
CSS Border Style
The border-style property specifies what kind of border to display.
The following values are allowed:
- dotted — Defines a dotted border
- dashed — Defines a dashed border
- solid — Defines a solid border
- double — Defines a double border
- groove — Defines a 3D grooved border. The effect depends on the border-color value
- ridge — Defines a 3D ridged border. The effect depends on the border-color value
- inset — Defines a 3D inset border. The effect depends on the border-color value
- outset — Defines a 3D outset border. The effect depends on the border-color value
- none — Defines no border
- hidden — Defines a hidden border
The border-style property can have from one to four values (for the top border, right border, bottom border, and the left border).
Example
Demonstration of the different border styles:
A groove border. The effect depends on the border-color value.
A ridge border. The effect depends on the border-color value.
An inset border. The effect depends on the border-color value.
An outset border. The effect depends on the border-color value.
Note: None of the OTHER CSS border properties (which you will learn more about in the next chapters) will have ANY effect unless the border-style property is set!
CSS border-style Property
The border-style property sets the style of an element’s four borders. This property can have from one to four values.
- border-style: dotted solid double dashed;
- top border is dotted
- right border is solid
- bottom border is double
- left border is dashed
- top border is dotted
- right and left borders are solid
- bottom border is double
- top and bottom borders are dotted
- right and left borders are solid
- all four borders are dotted
Default value: none Inherited: no Animatable: no. Read about animatable Version: CSS1 JavaScript syntax: object.style.borderStyle=»dotted double» Try it Browser Support
The numbers in the table specify the first browser version that fully supports the property.
CSS Syntax
Property Values
Value Description Demo none Default value. Specifies no border Demo ❯ hidden The same as «none», except in border conflict resolution for table elements Demo ❯ dotted Specifies a dotted border Demo ❯ dashed Specifies a dashed border Demo ❯ solid Specifies a solid border Demo ❯ double Specifies a double border Demo ❯ groove Specifies a 3D grooved border. The effect depends on the border-color value Demo ❯ ridge Specifies a 3D ridged border. The effect depends on the border-color value Demo ❯ inset Specifies a 3D inset border. The effect depends on the border-color value Demo ❯ outset Specifies a 3D outset border. The effect depends on the border-color value Demo ❯ initial Sets this property to its default value. Read about initial inherit Inherits this property from its parent element. Read about inherit More Examples
Example
Example
Example
Example
Example
Example
Example
Example
Set different borders on each side of an element:
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