border-left

Summary

The border-left CSS property is a shorthand that sets the values of border-left-color, border-left-style, and border-left-width. These properties describe the left border of elements.

The three values of the shorthand property can be specified in any order, and one or two of them may be omitted.

  border-left-style: dotted;
  border-left: thick green;

  border-left-style: dotted;
  border-left: none thick green;

Syntax

border-left: 1px;
border-left: 2px dotted;
border-left: medium dashed green;

Values

<br-width> 

See border-left-width.

<br-style> 

See border-left-style.

<color> 

See border-left-color.

Formal syntax

<br-width> || <br-style> || <color>
where 
<br-width> = <length> | thin | medium | thick
<br-style> = none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset
<color> = <rgb()> | <rgba()> | <hsl()> | <hsla()> | <hex-color> | <named-color> | currentcolor | <deprecated-system-color>
where 
<rgb()> = rgb( <rgb-component>#{3} )
<rgba()> = rgba( <rgb-component>#{3} , <alpha-value> )
<hsl()> = hsl( <hue>, <percentage>, <percentage> )
<hsla()> = hsla( <hue>, <percentage>, <percentage>, <alpha-value> )
<named-color> = <ident>
<deprecated-system-color> = ActiveBorder | ActiveCaption | AppWorkspace | Background | ButtonFace | ButtonHighlight | ButtonShadow | ButtonText | CaptionText | GrayText | Highlight | HighlightText | InactiveBorder | InactiveCaption | InactiveCaptionText | InfoBackground | InfoText | Menu | MenuText | Scrollbar | ThreeDDarkShadow | ThreeDFace | ThreeDHighlight | ThreeDLightShadow | ThreeDShadow | Window | WindowFrame | WindowText
where 
<rgb-component> = <integer> | <percentage>
<alpha-value> = <number>
<hue> = <number>

Example

HTML

<div class='box'>
  <p>This box has a border on the left side.</p>
</div>

CSS

.box {
  background-color: #ffaabb;
  border-left: 4px solid #000;
  height: 100px;
  width: 100px;
}

.box p {
  font-weight: bold;
  text-align: center;
}

Specifications

Browser compatibility