The border-bottom-width property

The border-bottom-width property specifies a width of a bottom border. The value of the property is any size units, except percentages, or the keywords thin (2 pixels border), medium (4 pixels border) or thick (6 pixels border). Default value: medium.

Syntax

cssselector {
  border-bottom-width: value;
}

Example

Let's set a bottom border to one pixel width:

html<div id="elem"></div>

css#elem {
  border-bottom-width: 1px;
  border-bottom-style: solid;
  border-bottom-color: black;
  
  background: #f9f9f9;
  width: 300px;
  height: 100px;
}

Результат:

See also