CSS border-bottom

Shorthand property that defines the width, color, and style of the bottom border of an element.

Syntax

border-bottom: <value>;

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where <value> can be one of the following:

• Border width: thick
• Border style: dashed
• Border color: #f1f1f1

Note: values can be provided in any order.

Example 1

Set the bottom border of the h1 element to be green, 3 pixels thick, and dotted:

h1 {
  border-bottom: green 3px dotted;
}

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The following image demonstrates the code block above:

Example 2

Set the bottom border of the h1 element to be 4 pixels thick, dashed, and blue:

h1 {
  border-bottom: 4px dashed blue;
}

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The following image demonstrates the code block above: