CSS border-top-width Property
Topic: CSS3 Properties ReferencePrev|Next
Description
The border-top-width property sets the width of an element's top border individually. However in many cases the shorthand CSS properties like border-width or border-top are more convenient to use and preferable.
The following table summarizes the usages context and the version history of this property.
| Default value: | medium |
|---|---|
| Applies to: | All elements |
| Inherited: | No |
| Animatable: | Yes. See animatable properties. |
| Version: | CSS 1, 2, 3 |
Syntax
The syntax of the property is given with:
border-top-width: |
thin | medium | thick | length | inherit |
The example below shows the border-top-width property in action.
Example
Try this code »p {
border-style: solid;
border-top-width: 15px;
}Note: You must declare the border-style property before the border-bottom-width property. An element must have borders before you can set the width of the border, because the default value of the border-style property is none.
Property Values
The following table describes the values of this property.
| Value | Description |
|---|---|
thin |
A thin border. |
medium |
A medium border. |
thick |
A thick border. |
| length | A length value in px, pt, cm, em, etc. Negative values are not allowed. |
initial |
Sets this property to its default value. |
inherit |
If specified, the associated element takes the computed value of its parent element border-top-width property. |
Browser Compatibility
The border-top-width property is supported in all major modern browsers.
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Basic Support—
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Further Reading
See tutorial on: CSS Border, CSS3 Border.
Related properties: border, border-width, border-top, border-top-color, border-top-style.
