[css] Is there a 'box-shadow-color' property?

I have the following CSS:

box-shadow: inset 0px 0px 2px #a00;

Now I am trying to extract that color to make the page colors 'skinnable'. Is there any way of doing this? Simply removing the color, and then using the same key again later overwrites the original rule.

There doesn't seem to be a box-shadow-color, at least Google turns nothing up.

This question is related to css box-shadow

The answer is


You can do this with CSS Variable

.box-shadow {
    --box-shadow-color: #000; /* Declaring the variable */
    width: 30px;                
    height: 30px;
    box-shadow: 1px 1px 25px var(--box-shadow-color); /* Calling the variable */

}

.box-shadow:hover  {
    --box-shadow-color: #ff0000; /* Changing the value of the variable */
}

You could use a CSS pre-processor to do your skinning. With Sass you can do something similar to this:

_theme1.scss:

$theme-primary-color: #a00;
$theme-secondary-color: #d00;
// etc.

_theme2.scss:

$theme-primary-color: #666;
$theme-secondary-color: #ccc;
// etc.

styles.scss:

// import whichever theme you want to use
@import 'theme2';

-webkit-box-shadow: inset 0px 0px 2px $theme-primary-color;
-moz-box-shadow: inset 0px 0px 2px $theme-primary-color;

If it's not site wide theming but class based theming you need, then you can do this: http://codepen.io/jjenzz/pen/EaAzo


Yes there is a way

box-shadow 0 0 17px 13px rgba(30,140,255,0.80) inset

Actually… there is! Sort of. box-shadow defaults to color, just like border does.

According to http://dev.w3.org/.../#the-box-shadow

The color is the color of the shadow. If the color is absent, the used color is taken from the ‘color’ property.

In practice, you have to change the color property and leave box-shadow without a color:

box-shadow: 1px 2px 3px;
color: #a00;

Support

  • Safari 6+
  • Chrome 20+ (at least)
  • Firefox 13+ (at least)
  • IE9+ (IE8 doesn't support box-shadow at all)

Demo

_x000D_
_x000D_
div {_x000D_
    box-shadow: 0 0 50px;_x000D_
    transition: 0.3s color;_x000D_
}_x000D_
.green {_x000D_
    color: green;_x000D_
}_x000D_
.red {_x000D_
    color: red;_x000D_
}_x000D_
div:hover {_x000D_
    color: yellow;_x000D_
}_x000D_
_x000D_
/*demo style*/_x000D_
body {_x000D_
    text-align: center;_x000D_
}_x000D_
div {_x000D_
    display: inline-block;_x000D_
    background: white;_x000D_
    height: 100px;_x000D_
    width: 100px;_x000D_
    margin: 30px;_x000D_
    border-radius: 50%;_x000D_
}
_x000D_
<div class="green"></div>_x000D_
<div class="red"></div>
_x000D_
_x000D_
_x000D_

The bug mentioned in the comment below has since been fixed :)


A quick and copy/paste you can use for Chrome and Firefox would be: (change the stuff after the # to change the color)

-moz-border-radius: 10px;
-webkit-border-radius: 10px;
-khtml-border-radius: 10px;
-border-radius: 10px;
-moz-box-shadow: 0 0 15px 5px #666;
-webkit-box-shadow: 0 0 15px 05px #666;

Matt Roberts' answer is correct for webkit browsers (safari, chrome, etc), but I thought someone out there might want a quick answer rather than be told to learn to program to make some shadows.


Maybe this is new (I am also pretty crap at css3), but I have a page that uses exactly what you suggest:

-moz-box-shadow: 10px 10px 5px #384e69;
-webkit-box-shadow: 10px 10px 5px #384e69;
box-shadow: 10px 10px 5px #384e69;}

.. and it works fine for me (in Chrome at least).