What is Border-Width Property in CSS
The border-width property in CSS asserts the border width of the border of an element. Each of the sides may be distinctively using border-top width, border,bottom-width, border-right-width and the border -left-width property.
The border-width property in CSS is used to set the border width of all the four sides of an element. The border-width property is the combination of four property
Default Value:
- medium
Syntax:
border-width: length|thin|medium|thick|initial|inherit
Property Values:
- length: It is used to set the width of the border. It does not takes negative value.
- thin: It is used to set the thin border at the top of element.
- medium: It is used to set medium sized top border. It is the default value.
- thick: It is used to set the thick top border.
- initial: It is used to set the border-top-width to its default value.
- inherit: This property is inherited from its parent.
Example 1: This example set border-width to single value to all sides.
border-width:val;
- border-top-width: val;
- border-right-width: val;
- border-bottom-width: val;
HTML
<!DOCTYPE html>
<html>
<head>
<title>
border-width property
</title>
<style>
div {
margin-bottom: 10px;
border-style: solid;
}
</style>
</head>
<body>
<h1 style="color: red">
CodeOne
</h1>
<p>border-width property: [value]</p>
<!-- This div has a uniform border
of 10px around it. -->
<div style="border-width: 10px">
This div has a border around it of 10px.
</div>
<!-- This div has a uniform thin border
around it.-->
<div style="border-width: thin">
This div has a thin border.
</div>
<!--This div has a uniform medium border
around it. -->
<div style="border-width: medium">
This div has a medium border.
</div>
<!-- This div has uniform thick border
around it.-->
<div style="border-width: thick">
This div has a thick border.
</div>
</body>
</html>
Output:
Example 2:
This example contains two value of border -width.
border-width: val 1 val 2;
- border-top-width: val 1;
- border-right-width:val 2;
- border-bottom-width: val 1;
- border-left-width: val 2;
HTML
<!DOCTYPE html>
<html>
<head>
<title>
border-width property
</title>
<style>
div {
margin-bottom: 10px;
border-style: solid;
}
</style>
</head>
<body>
<h1 style = "color: red">
CodeOne
</h1>
<p>border-width property: [value] [value]</p>
<!-- This div has a 5px border on the top and
bottom, and 30px on the left and right.-->
<div style = "border-width: 5px 30px">
This div has a border of 5px on the top and
bottom, and 30px on the left and right.
</div>
<!-- This div has a thin border on the top and
bottom, and thick on the left and right. -->
<div style = "border-width:thin thick">
This div has a thin border on the top and bottom,
and thick border on the left and right.
</div>
</body>
</html>
Output:
Example 3: This example sets border-width to three value.
border-width: val 1 val2 val3;
- border-top-widht: val 1;
- border-right-width: val 2;
- border-bottom-width: val3;
- border-left-width: val2;
HTML
<!DOCTYPE html>
<html>
<head>
<title>
border-width property
</title>
<style>
div {
margin-bottom: 10px;
border-style: solid;
}
</style>
</head>
<body>
<h1 style="color:red">CodeOne</h1>
<p>
border-width property: [value] [value] [value]
</p>
<!-- This div has a 5px border on the top, 30px
on the left and right, and 15px on the bottom. -->
<div style="border-width:5px 30px 15px">
This div has a 5px border on the top, 30px on
the left and right, and 15px on the bottom.
</div>
<!-- This div has a thin border on the top, a thick
border on the left and right, and a medium border
on the bottom. -->
<div style="border-width: thin thick medium">
This div has a thin border on the top, a thick
border on the left and right, and a medium
border on the bottom.
</div>
</body>
</html>
Output:
Example 4: This example contains four value to border-width propery.
border-width: val 1 val 2 val 3 val 4;
- border-top-width: val 1;
- border-right-width: val 2;
- border-bottom-width: val 3;
- border-left-width: val 4;
HTML
<!DOCTYPE html>
<html>
<head>
<title>
border-width property
</title>
<style>
div {
margin-bottom: 10px;
border-style: solid;
}
</style>
</head>
<body>
<h1 style="color:red">
CodeOne
</h1>
<p>
border-width property:
[value] [value] [value] [value]
</p>
<!-- This div has a border of 5px on the top,
30px on the right, 15px on the bottom, and
2px on the left. -->
<div style="borer-width:5px 30px 15px 2px">
This div has a border of 5px on the top,
30px on the right, 15px on the bottom,
and 2px on the left.
</div>
<!-- This div has a thin border on the top,
30px on the right, 15px on the bottom, and
2px on the left. -->
</div>
<!-- This div has a thin borer on the top,
thick border on right, medium border on the
bottom, and thin border on the left. -->
<div style-"border-width: thin thick medium thin">
This div has a thin border on the top, thick
border on right, medium border on the bottom,
and thin border on the left.
</div>
</body>
</html>
Output:
Example 5: This example describes the initial value of border-width property.
HTML
<!DOCTYPE html>
<html>
<head>
<head>
<title>
border-width propety
</title>
<style>
div {
margin-bottom: 10px;
border-style: solid;
}
</style>
</head>
<body>
<h1 style="color: red">
CodeOne
</h1>
<p>border-width property: initial</p>
<!-- This div has the border width set
to initial. -->
<div style="border-width: initial">
This div has the default borer width,
which is the medium border.
</div>
</body>
</html>
Output:
Example 6: This example describes the inherit property.
HTML
<!DOCTYPE html>
<html>
<head>
<title>
border-width property
</title>
<style>
div {
margin: 10px;
border-style: solid;
}
</style>
</head>
<body>
<h1 style="color: red">
CodeOne
</h1>
<p>border-width property : inherit</p>
<!-- This div is the parent with the border
width set to thick. -->
<div id="parent" style="border-width: thin">
This is the parent div.
<!-- This div inherits the border width
from the parent div. -->
<div style="border-width: inherit">
This div inherits the border width
from the parent.
</div>
</div>
</body>
</html>
Output:
