| Syntax : | border-top-width : value |
|---|---|
| Possible Values : | thin | medium | thick | length |
| Initial Value : | medium |
| Applies to: | All elements |
| Inherited : | No |
The border-top-width property is used to specify the width of an element's top border. The value may be one of three keywords, which are not affected by font size, or a border-top, border-width, or border shorthand properties.