CSS border-bottom Property

Set the style of the bottom border for different elements:

h1 {
border-bottom: 5px solid red;
}

h2 {
border-bottom: 4px dotted blue;
}

div {
border-bottom: double;
}

Definition and Usage

The border-bottom property is a shorthand property for (in the following order):

If border-bottom-color is omitted, the color applied will be the color of the text.

Default value:	medium none color
Inherited:	no
Animatable:	yes, see individual properties. Read about animatable Try it
Version:	CSS1
JavaScript syntax:	object.style.borderBottom="15px dotted lightblue" Try it

The numbers in the table specify the first browser version that fully supports the property.

Property
border-bottom	1.0	4.0	1.0	1.0	3.5

border-bottom: border-width border-style border-color|initial|inherit;

Value	Description	Demo
border-bottom-width	Required. Specifies the width of the bottom border. Default value is "medium"	Demo ❯
border-bottom-style	Required. Specifies the style of the bottom border. Default value is "none"	Demo ❯
border-bottom-color	Optional. Specifies the color of the bottom border. Default value is the color of the text	Demo ❯
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit

CSS tutorial: CSS Border