YUI Library Examples: Button Control: Glowing Button

Skinning the Button widget is done using CSS. The stylesheet used for other Button examples is a minified version of the button-core.css and button-skin.css files. When customizing the Button skin, use the raw source files as a reference.

The button-core.css file includes foundational styling that clears the default padding, margins and borders for the <button> element as wells as normalizes its display type, whereas the button-skin.css file is used to apply colors, background images, etc. Skinning can be accomplished by either overriding the styles defined in the button-skin.css file, or by creating an entirely new skin file. When overriding styles, place them in a separate file to simplify integrating with YUI updates. The follow example illustrates how to create a new style for a Button instance from scratch.

Begin by creating a new Button instance.

Next, add style definitions for borders, background colors, and apply a transparent background to the Button's root element.

.yui-button {

border-width: 1px 0;
    border-style: solid;
    border-color: #004d89;
    margin: auto .25em;

/*
        Give the Button instance a transparent background image that 
        provides a glossy, glass-like look.  Since the background image is
        transparent, it can apply the glass effect the Button instance
        regardless of its background color.
    */
    background: url(../button/assets/gloss.png) repeat-x left center;
    
}

.ie6 {

/* Make background image transparent IE 6 using the AlphaImageLoader. */
    background-image: none;
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='../button/assets/gloss.png', sizingMethod = 'scale');

}

.yui-button .first-child {

border-width: 0 1px;
    border-style: solid;
    border-color: #004d89;
    margin: 0 -1px;

/*
        The following is necessary to get negative margins working in IE.s
    */

*position: relative;
    *left: -1px;

}

.yui-button button,
.yui-button a {

padding: 0 10px;
    font-size: 93%;  /* 12px */
    line-height: 2;  /* ~24px */
    *line-height: 1.7; /* For IE */
    min-height: 2em; /* For Gecko */
    *min-height: auto; /* For IE */
    color: #fff;
    border: solid 1px #599acd;

}

.yui-button#ok-button {
    
    background-color: #004d89;

}

Lastly, utilize the ColorAnim utility to animate the Button instance's background color.

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YUI Library Examples: Button Control: Glowing Button

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