border-bottom-width Description:
The border-bottom-width property defines the width of the bottom border of the element.
border-bottom-width in CSS Versions:
border-bottom-width Syntax:
border-bottom-width: thin | medium | thick | <length> | inherit
- thin, medium, or thick
The length of these keywords is user-agent dependent, but thin <= medium <= thick. - <length>
A specific length (include unit of measure). - inherit
The element should have the same border-bottom-width setting as the parent.
border-bottom-width Initial Value:
medium
border-bottom-width Applies To:
All elements.
border-bottom-width Inheritance:
This property is not inherited.
border-bottom-width Browser Support:
border-bottom-width Examples:
standard border-bottom-width
<p style="border-bottom-width : 2em;">
This paragraph has a 2 em bottom border.
</p>
border-bottom-width Special Notes:
- Negative values are permitted.
- If you don't set the border-style, the border will not display.

