border-bottom
The shorthand to define width, style, and color for just the bottom edge of an element. It's the standard way to create underlines, dividers, and bottom-aligned accents.
It is documented as part of the CSS Backgrounds and Borders specification.
Syntax
/* Usage Example */
h2 {
/* border-bottom-width | border-bottom-style | border-bottom-color */
border-bottom: 2px solid #e2e8f0;
padding-bottom: 0.5rem;
margin-bottom: 1rem;
}
/* Global values */
border-bottom: inherit;
border-bottom: initial;
border-bottom: revert;
border-bottom: revert-layer;
border-bottom: unset;border-bottom Browser support
Widely available
Since
2015 96% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.
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