border-top-style property CSS Reference



Definition and Usage

The border-top-style CSS property sets the line style of the top border of a box.

Note: The specification doesn't define how borders of different styles connect in the corners.

  • Initial none
  • Applies to all elements
  • Inherited no
  • Media visual
  • Computed Value as specified
  • Animatable no
  • Canonical order the unique non-ambiguous order defined by the formal grammar

Syntax

Formal syntax: <br-style>
border-top-style: none
border-top-style: hidden
border-top-style: dotted
border-top-style: dashed
border-top-style: solid
border-top-style: double
border-top-style: groove
border-top-style: ridge
border-top-style: inset
border-top-style: outset
border-top-style: inherit

Values

<br-style>
Is a keyword describing the style of the top border. It can have the following values:
Style Preview Description
none
 
Like for the hidden keyword, displays no border. In that case, except if a background image is set, the calculated values of border-top-width will be 0, even if specified otherwise through the property. In case of table cell and border collapsing, the none value has the lowest priority: it means that if any other conflicting border is set, it will be displayed.
hidden
 
Like for the none keyword, displays no border. In that case, except if a background image is set, the calculated values of border-top-width will be 0, even if specified otherwise through the property. In case of table cell and border collapsing, the hidden value has the highest priority: it means that if any other conflicting border is set, it won't be displayed.
dotted
 
Displays a series of rounded dots. The spacing of the dots are not defined by the specification and are implementation-specific. The radius of the dots is half the calculated border-top-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 amount defined as border-width or border-top-width.
groove
 
Displays a border leading to a carved effect. It is the opposite of ridge.
ridge
 
Displays a border with a 3D effect, like if it is coming out of the page. It is the opposite of groove.
inset
 
Displays a border that makes the box appear embedded. It is the opposite of outset. When applied to a table cell with border-collapse set to collapsed, this value behaves like groove.
outset
 

Displays a border that makes the box appear in 3D, embossed. It is the opposite of inset. When applied to a table cell with border-collapse set to collapsed, this value behaves like ridge.

inherit
  Represents the border style used by the parent of the current element.

Examples

element {
border-top-width: 1px;
border-top-style: dotted;
border-top-color: #000;
}

Compatibility

Desktop browsers

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 1.0 1.0 5.5 9.2 1.0

Mobile browsers

Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support NA NA NA NA NA

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