The border-left-width Property is used to sets the width of the left-border of an Element.It is mandatory to declare the border-style or the border-left-style property before the border-left-color property.
Syntax:
border-left-width: medium|thin|thick|length|initial|inherit;
Property Values: medium: It has a default value. It is used to specify a medium, size of left-border.
Syntax:
border-left-width:medium;
Example:
html
<!DOCTYPE html>
< html >
< head >
< title >
CSS | border-left-width Property
</ title >
< style >
h1 {
color: green;
}
h3 {
border: solid green;
border-left-width: medium;
width: 50%;
}
</ style >
</ head >
< body >
< center >
< h1 >GeeksForGeeks</ h1 >
< h2 >border-left-width:medium;</ h2 >
< h3 >GeeksForGeeks</ h3 >
< p style="border-style:dotted;
border-left-width:medium;
width:70%;">
It is a computer science portal for geeks.</ p >
</ body >
</ html >
|
Output:

thin: It specifies a thin left border.
Syntax:
border-left-width:thin;
Example:
html
<!DOCTYPE html>
< html >
< head >
< title >
CSS | border-left-width Property
</ title >
< style >
h1 {
color: green;
}
h3 {
border: solid green;
border-left-width: thin;
width: 50%;
}
</ style >
</ head >
< body >
< center >
< h1 >GeeksForGeeks</ h1 >
< h2 >border-left-width:thin;</ h2 >
< h3 >GeeksForGeeks</ h3 >
< p style="border-style:dotted;
border-left-width:thin;
width:70%;">
It is a computer science portal for geeks.</ p >
</ body >
</ html >
|
Output:
thick: It specifies a thick left border of an element.
Syntax:
border-left-width:thick;
Example:
html
<!DOCTYPE html>
< html >
< head >
< title >
CSS | border-left-width Property
</ title >
< style >
h1 {
color: green;
}
h3 {
border: solid green;
border-left-width: thick;
width: 50%;
}
</ style >
</ head >
< body >
< center >
< h1 >GeeksForGeeks</ h1 >
< h2 >border-left-width:thick;</ h2 >
< h3 >GeeksForGeeks</ h3 >
< p style="border-style:dotted;
border-left-width:thick;
width:70%;">
It is a computer science portal for geeks.</ p >
</ body >
</ html >
|
Output:

length: It specifies the thickness of the left-border in terms of pixel.
Syntax:
border-left-width: length;
Example:
html
<!DOCTYPE html>
< html >
< head >
< title >
CSS | border-left-width Property
</ title >
< style >
h1 {
color: green;
}
h3 {
border: solid green;
border-left-width: 10px;
width: 50%;
}
</ style >
</ head >
< body >
< center >
< h1 >GeeksForGeeks</ h1 >
< h2 >border-left-width:length;</ h2 >
< h3 >GeeksForGeeks</ h3 >
< p style="border-style:dotted;
border-left-width:5px;
width:70%;">
It is a computer science portal for geeks.</ p >
</ body >
</ html >
|
Output:

initial: It sets the property to its default value.
Syntax:
border-left-width:initial;
Example:
html
<!DOCTYPE html>
< html >
< head >
< title >
CSS | border-left-width Property
</ title >
< style >
h1 {
color: green;
}
h3 {
border: solid green;
border-left-width: initial;
width: 50%;
}
</ style >
</ head >
< body >
< center >
< h1 >GeeksForGeeks</ h1 >
< h2 >border-left-width:initial;</ h2 >
< h3 >GeeksForGeeks</ h3 >
< p style="border-style:dotted;
border-left-width:initial;
width:70%;">
It is a computer science portal for geeks.</ p >
</ body >
</ html >
|
Output:

Supported Browsers: The browser supported by CSS border-left-width property are listed below:
- Google Chrome 1.0
- Edge 12.0
- Internet Explorer 4.0
- Firefox 1.0
- Opera 3.5
- Apple Safari 1.0
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Last Updated :
02 Jun, 2023
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