Style borderLeftWidth attribute

Definition and usage

borderLeftWidth Sets or returns the width of the element's left border.

See also:

CSS Tutorial:Bordo CSS

CSS Reference Manual:border-left-width attribute

HTML DOM Reference Manual:border attribute

Example

Example 1

Change the left border width of the <div> element to 10px:

document.getElementById("myDiv").style.borderLeftWidth = "10px";

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Example 2

Change the left border width of the <div> element to thin:

document.getElementById("myDiv").style.borderLeftWidth = "thin";

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Example 3

Return the width of the left border of the <div> element:

alert(document.getElementById("myDiv").style.borderLeftWidth);

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Syntax

Return borderLeftWidth attribute:

object.style.borderLeftWidth

Set borderLeftWidth attribute:

object.style.borderLeftWidth = "thin|medium|thick|length|initial|inherit"

Attribute value

Value Description
thin Define thin border.
medium Define medium border. Default.
thick Define thick border.
length Border width in length units.
initial Sets this property to its default value. See initial.
inherit Inherits this property from its parent element. See inherit.

Technical details

Default value: medium
Return value: A string that represents the width of the element's left border.
CSS version: CSS1

Browser support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
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