materio-base-d7/sites/all/libraries/colorbox/example4/colorbox.css

/*
    Colorbox Core Style:
    The following CSS is consistent between example themes and should not be altered.
*/
#colorbox, #cboxOverlay, #cboxWrapper{position:absolute; top:0; left:0; z-index:9999; overflow:hidden; -webkit-transform: translate3d(0,0,0);}
#cboxWrapper {max-width:none;}
#cboxOverlay{position:fixed; width:100%; height:100%;}
#cboxMiddleLeft, #cboxBottomLeft{clear:left;}
#cboxContent{position:relative;}
#cboxLoadedContent{overflow:auto; -webkit-overflow-scrolling: touch;}
#cboxTitle{margin:0;}
#cboxLoadingOverlay, #cboxLoadingGraphic{position:absolute; top:0; left:0; width:100%; height:100%;}
#cboxPrevious, #cboxNext, #cboxClose, #cboxSlideshow{cursor:pointer;}
.cboxPhoto{float:left; margin:auto; border:0; display:block; max-width:none; -ms-interpolation-mode:bicubic;}
.cboxIframe{width:100%; height:100%; display:block; border:0; padding:0; margin:0;}
#colorbox, #cboxContent, #cboxLoadedContent{box-sizing:content-box; -moz-box-sizing:content-box; -webkit-box-sizing:content-box;}

/* 
    User Style:
    Change the following styles to modify the appearance of Colorbox.  They are
    ordered & tabbed in a way that represents the nesting of the generated HTML.
*/
#cboxOverlay{background:#fff; opacity: 0.9; filter: alpha(opacity = 90);}
#colorbox{outline:0;}
    #cboxTopLeft{width:25px; height:25px; background:url(images/border1.png) no-repeat 0 0;}
    #cboxTopCenter{height:25px; background:url(images/border1.png) repeat-x 0 -50px;}
    #cboxTopRight{width:25px; height:25px; background:url(images/border1.png) no-repeat -25px 0;}
    #cboxBottomLeft{width:25px; height:25px; background:url(images/border1.png) no-repeat 0 -25px;}
    #cboxBottomCenter{height:25px; background:url(images/border1.png) repeat-x 0 -75px;}
    #cboxBottomRight{width:25px; height:25px; background:url(images/border1.png) no-repeat -25px -25px;}
    #cboxMiddleLeft{width:25px; background:url(images/border2.png) repeat-y 0 0;}
    #cboxMiddleRight{width:25px; background:url(images/border2.png) repeat-y -25px 0;}
    #cboxContent{background:#fff; overflow:hidden;}
        .cboxIframe{background:#fff;}
        #cboxError{padding:50px; border:1px solid #ccc;}
        #cboxLoadedContent{margin-bottom:20px;}
        #cboxTitle{position:absolute; bottom:0px; left:0; text-align:center; width:100%; color:#999;}
        #cboxCurrent{position:absolute; bottom:0px; left:100px; color:#999;}
        #cboxLoadingOverlay{background:#fff url(images/loading.gif) no-repeat 5px 5px;}

        /* these elements are buttons, and may need to have additional styles reset to avoid unwanted base styles */
        #cboxPrevious, #cboxNext, #cboxSlideshow, #cboxClose {border:0; padding:0; margin:0; overflow:visible; width:auto; background:none; }
        
        /* avoid outlines on :active (mouseclick), but preserve outlines on :focus (tabbed navigating) */
        #cboxPrevious:active, #cboxNext:active, #cboxSlideshow:active, #cboxClose:active {outline:0;}

        #cboxSlideshow{position:absolute; bottom:0px; right:42px; color:#444;}
        #cboxPrevious{position:absolute; bottom:0px; left:0; color:#444;}
        #cboxNext{position:absolute; bottom:0px; left:63px; color:#444;}
        #cboxClose{position:absolute; bottom:0; right:0; display:block; color:#444;}

/*
  The following fixes a problem where IE7 and IE8 replace a PNG's alpha transparency with a black fill
  when an alpha filter (opacity change) is set on the element or ancestor element.  This style is not applied to or needed in IE9.
  See: http://jacklmoore.com/notes/ie-transparency-problems/
*/
.cboxIE #cboxTopLeft,
.cboxIE #cboxTopCenter,
.cboxIE #cboxTopRight,
.cboxIE #cboxBottomLeft,
.cboxIE #cboxBottomCenter,
.cboxIE #cboxBottomRight,
.cboxIE #cboxMiddleLeft,
.cboxIE #cboxMiddleRight {
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#00FFFFFF,endColorstr=#00FFFFFF);
}