-moz-border-top-colors

In Mozilla applications like Firefox, the -moz-border-top-colors CSS property sets a list of colors for the top border.

When an element has a border that is larger than a single CSS pixel, each line of pixels uses the next color specified in this property, from the outside in. This eliminates the need for nested boxes. If the border is wider than the number of specified colors, the remaining part of the border is the innermost color specified.

It does not apply

1. if border-style is dashed or dotted.
2. to tables with border-collapse: collapse.

Syntax

/* Single <color> value */
-moz-border-top-colors: #f0f0f0;

/* Multiple <color> values */
-moz-border-top-colors: #f0f0f0 #a0a0a0 #505050 #000000;

/* Global values */
-moz-border-top-colors: inherit;
-moz-border-top-colors: initial;
-moz-border-top-colors: unset;

Values

Accepts a white-space separated list of color values.

<color>

Specifies the color of a line of pixels of the top border. transparent is valid. See <color> values for possible units.

none

Default, no colors are drawn or border-color is used, if specified.

Formal syntax

[<color>]* <color> | none
where 
<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

<div id="example">Example</div>

#example {
  padding: 20px;
  background-color: gray;
  border: 10px solid black;
  -moz-border-top-colors: #e00 #c30 #c50 #c60 #c70 #c80 #c90 #ca0 #cb0 #cc0;
  -moz-border-right-colors: red #f60 #f80 #f90 #fa0 #fb0 #fc0 #fd0 #fe0 #ff0;
  -moz-border-bottom-colors: red #f60 #f80 #f90 #fa0 #fb0 #fc0 #fd0 #fe0 #ff0;
  -moz-border-left-colors: #e00 #c30 #c50 #c60 #c70 #c80 #c90 #ca0 #cb0 #cc0;
}

Specifications

This property is not part of any specification.

Browser compatibility

See also

• border-color
• -moz-border-right-colors
• -moz-border-bottom-colors
• -moz-border-left-colors