CSSborder-block-start-style Property
Example
Set a style for the border at the start in the block direction:
border-block-start-style: dotted;
}
More "Try it Yourself" examples below.
Definition and Usage
Theborder-block-start-style property sets the style of an element's border at the start in the block direction.
The CSSborder-block-start-style property is very similar to CSS propertiesborder-bottom-style,border-left-style,border-right-style andborder-top-style, but theborder-block-start-style property is dependent on block direction.
Note: The related CSS propertywriting-mode defines block direction. This affects where the start and end of a block is and the result of theborder-block-start-style property. For pages in English, inline direction is left to right and block direction is downward.
| Default value: | none |
|---|---|
| Inherited: | no |
| Animatable: | no.Read aboutanimatable |
| Version: | CSS3 |
| JavaScript syntax: | object.style.borderBlockStartStyle="dotted"Try it |
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
| Property | |||||
|---|---|---|---|---|---|
| border-block-start-style | 69.0 | 79.0 | 41.0 | 12.1 | 56.0 |
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 ❯ |
| rigde | 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 aboutinitial | |
| inherit | Inherits this property from its parent element.Read aboutinherit |
More Examples
With writing-mode property
The position of the border style at the start in the block direction is affected by thewriting-mode property:
writing-mode: vertical-rl;
border-block-start-style: dotted;
}
Related Pages
CSS tutorial:CSS Border
CSS border property:CSS Border property
CSS border-block property:CSS Border-block property
CSS border-block-style property:CSS Border-block-style property
CSS border-block-end-style property:CSS Border-block-end-style property
CSS border-bottom-style property:CSS Border-bottom-style property
CSS border-left-style property:CSS Border-left-style property
CSS border-right-style property:CSS Border-right-style property
CSS border-top-style property:CSS Border-top-style property
CSS writing-mode property:CSS Writing-mode property
