Show at least something wsupported

dabblet.css

body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p, blockquote, th, td {
    margin: 0;
    padding: 0;
}

html, body {
    margin: 0;
    padding: 0;
}

.cb-slideshow, .cb-slideshow:after {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0px;
    left: 0px;
    z-index: 0;
}

.cb-slideshow:after {
    content: '';
    /*background: transparent url('http://pehaa.com/wp-content/uploads/2009/03/pattern1.png') repeat top left;*/
}

.cb-slideshow li span {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    color: transparent;
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    opacity: 0;
    z-index: 0;
    backface-visibility: hidden;
    animation: imageAnimation 12s linear infinite 0s;
}

.cb-slideshow li:nth-child(1) span {
    background-image: url(http://themeserver.microsoft.com/themeserver//Bing/Desktop/en-US/Images/BaliBoats1920x120011-8-2012%209_23_02%20AM.jpg);
}

.cb-slideshow li:nth-child(2) span {
    background-image: url(http://themeserver.microsoft.com/themeserver//Bing/Desktop/en-US/Images/DewDragon1920x120011-8-2012%209_23_11%20AM.jpg);
    animation-delay: 3s;
}

.cb-slideshow li:nth-child(3) span {
    background-image: url(http://themeserver.microsoft.com/themeserver//Bing/Desktop/en-US/Images/CapeMay1920x120011-1-2012%2012_19_11%20PM.jpg);
    animation-delay: 6s;
}

.cb-slideshow li:nth-child(4) span {
    background-image: url(http://themeserver.microsoft.com/themeserver//Bing/Desktop/en-US/Images/HolkhamBay1920x120011-1-2012%2012_19_34%20PM.jpg);
    animation-delay: 9s;
}

@keyframes imageAnimation {
    0% {
        opacity: 1;
        transform: translateX(100%);
    }
    5% {
        opacity: 1;
	    transform: translateX(0px);
	}
    25% {
	    opacity: 1;
	    transform: translateX(0px);    
    }
    30% {
        opacity: 1;
        transform: translateX(-100%);
    }
    31% {
        opacity: 0;
    }
}
/* Show at least something wsupported */
.no-cssanimations .cb-slideshow li span {
    opacity: 1;
}

dabblet.html

<ul class="cb-slideshow">
            <li><span></span></li>
            <li><span></span></li>
            <li><span></span></li>
            <li><span></span></li>
        </ul>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split","fontsize":"100","seethrough":"","prefixfree":"1","page":"css"}