Border-style - CSS: Cascading Style Sheets - MDN Web Docs - Mozilla

The border-style shorthand CSS property sets the line style for all four sides of an element's border.

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Constituent properties

This property is a shorthand for the following CSS properties:

• border-bottom-style
• border-left-style
• border-right-style
• border-top-style

Syntax

css/* Keyword values */ border-style: none; border-style: hidden; border-style: dotted; border-style: dashed; border-style: solid; border-style: double; border-style: groove; border-style: ridge; border-style: inset; border-style: outset; /* top and bottom | left and right */ border-style: dotted solid; /* top | left and right | bottom */ border-style: hidden double dashed; /* top | right | bottom | left */ border-style: none solid dotted dashed; /* Global values */ border-style: inherit; border-style: initial; border-style: revert; border-style: revert-layer; border-style: unset;

The border-style property may be specified using one, two, three, or four values.

• When one value is specified, it applies the same style to all four sides.
• When two values are specified, the first style applies to the top and bottom, the second to the left and right.
• When three values are specified, the first style applies to the top, the second to the left and right, the third to the bottom.
• When four values are specified, the styles apply to the top, right, bottom, and left in that order (clockwise).

Each value is a keyword chosen from the list below.

Values

<line-style>

Describes the style of the border. It can have the following values:

none

Like the hidden keyword, displays no border. Unless a background-image is set, the computed value of the same side's border-width will be 0, even if the specified value is something else. In the case of table cell and border collapsing, the none value has the lowest priority: if any other conflicting border is set, it will be displayed.

hidden

Like the none keyword, displays no border. Unless a background-image is set, the computed value of the same side's border-width will be 0, even if the specified value is something else. In the case of table cell and border collapsing, the hidden value has the highest priority: if any other conflicting border is set, it won't be displayed.

dotted

Displays a series of rounded dots. The spacing of the dots is not defined by the specification and is implementation-specific. The radius of the dots is half the computed value of the same side's border-width.

dashed

Displays a series of short square-ended dashes or line segments. The exact size and length of the segments are not defined by the specification and are implementation-specific.

solid

Displays a single, straight, solid line.

double

Displays two straight lines that add up to the pixel size defined by border-width.

groove

Displays a border with a carved appearance. It is the opposite of ridge.

ridge

Displays a border with an extruded appearance. It is the opposite of groove.

inset

Displays a border that makes the element appear embedded. It is the opposite of outset. When applied to a table cell with border-collapse set to collapsed, this value behaves like ridge.

outset

Displays a border that makes the element appear embossed. It is the opposite of inset. When applied to a table cell with border-collapse set to collapsed, this value behaves like groove.

Formal definition

Initial value	as each of the properties of the shorthand: border-top-style: none border-right-style: none border-bottom-style: none border-left-style: none
Applies to	all elements. It also applies to ::first-letter.
Inherited	no
Computed value	as each of the properties of the shorthand: border-bottom-style: as specified border-left-style: as specified border-right-style: as specified border-top-style: as specified
Animation type	discrete

Formal syntax

border-style = <line-style>{1,4} <line-style> = none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset

Examples

All property values

Here is an example of all the property values.

HTML

html<pre class="b1">none</pre> <pre class="b2">hidden</pre> <pre class="b3">dotted</pre> <pre class="b4">dashed</pre> <pre class="b5">solid</pre> <pre class="b6">double</pre> <pre class="b7">groove</pre> <pre class="b8">ridge</pre> <pre class="b9">inset</pre> <pre class="b10">outset</pre>

CSS

csspre { height: 80px; width: 120px; margin: 20px; padding: 20px; display: inline-block; background-color: palegreen; border-width: 5px; box-sizing: border-box; } /* border-style example classes */ .b1 { border-style: none; } .b2 { border-style: hidden; } .b3 { border-style: dotted; } .b4 { border-style: dashed; } .b5 { border-style: solid; } .b6 { border-style: double; } .b7 { border-style: groove; } .b8 { border-style: ridge; } .b9 { border-style: inset; } .b10 { border-style: outset; }

Result

Specifications

Specification
CSS Backgrounds and Borders Module Level 3 # border-style

Browser compatibility

BCD tables only load in the browser

See also

• The border-related shorthand CSS properties: border, border-width, border-color, border-radius