border-left
Try it
As with all shorthand properties, border-left
always sets the values of all of the properties that it can set, even if they are not specified. It sets those that are not specified to their default values. Consider the following code:
css
border-left-style: dotted;
border-left: thick green;
It is actually the same as this one:
css
border-left-style: dotted;
border-left: none thick green;
The value of border-left-style
given before border-left
is ignored. Since the default value of border-left-style
is none
, not specifying the border-style
part results in no border.
Constituent properties
This property is a shorthand for the following CSS properties:
Syntax
css
border-left: 1px;
border-left: 2px dotted;
border-left: medium dashed blue;
/* Global values */
border-left: inherit;
border-left: initial;
border-left: revert;
border-left: revert-layer;
border-left: unset;
The three values of the shorthand property can be specified in any order, and one or two of them may be omitted.
Values
<br-width>
-
See
border-left-width
. <br-style>
-
See
border-left-style
. <color>
-
See
border-left-color
.
Formal definition
Initial value | as each of the properties of the shorthand:
|
---|---|
Applies to | all elements. It also applies to ::first-letter . |
Inherited | no |
Computed value | as each of the properties of the shorthand:
|
Animation type | as each of the properties of the shorthand:
|
Formal syntax
Examples
Applying a left border
HTML
html
<div>This box has a border on the left side.</div>
CSS
css
div {
border-left: 4px dashed blue;
background-color: gold;
height: 100px;
width: 100px;
font-weight: bold;
text-align: center;
}
Results
Specifications
Specification |
---|
CSS Backgrounds and Borders Module Level 3 # border-shorthands |
Browser compatibility
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