CSS3 Marquee

by Raul Corona Xolaltenco

HTML

<script src="http://leaverou.github.com/prefixfree/prefixfree.js"></script>
<!-- Wanted to see how easily marquees could be constructed with CSS:
     - This demo uses -prefix-free to avoid vendor prefixes
     - It also requires manual setting of the end text-indent
     - Everything below the /* Make it pretty */ comment is non-essential
     - Brought to you by @jonathansampson -->
<p class="microsoft marquee">Windows 8 and Windows RT are focused on your life—your friends and family, your apps, and your stuff. With new things like the <a href="http://windows.microsoft.com/en-US/windows-8/start-screen">Start screen</a>, <a href="http://windows.microsoft.com/en-US/windows-8/charms">charms</a>, and a <a href="http://windows.microsoft.com/en-US/windows-8/microsoft-account">Microsoft account</a>, you can spend less time searching and more time doing.</p>
<button class="toggle">Toggle Beautification</button>
<p class="vanity">
    <a href="https://twitter.com/jonathansampson">@jonathansampson</a> of 
    <a href="https://twitter.com/appendTo">@appendTo</a>
</p>

CSS

/* Make it a marquee */
.marquee {
    width: 450px;
    margin: 0 auto;
    overflow: hidden;
    white-space: nowrap;
    box-sizing: border-box;
    animation: marquee 50s linear infinite;
}

.marquee:hover {
    animation-play-state: paused
}

/* Make it move */
@keyframes marquee {
    0%   { text-indent: 27.5em }
    100% { text-indent: -105em }
}

/* Make it pretty */
.microsoft {
    padding-left: 1.5em;
    position: relative;
    font: 16px 'Segoe UI', Tahoma, Helvetica, Sans-Serif;
}

/* ::before was :before before ::before was ::before - kthx */
.microsoft:before, .microsoft::before {
    z-index: 2;
    content: '';
    position: absolute;
    top: -1em; left: -1em;
    width: .5em; height: .5em;
    box-shadow: 1.0em 1.25em 0 #F65314,
        		1.6em 1.25em 0 #7CBB00,
        		1.0em 1.85em 0 #00A1F1,
        		1.6em 1.85em 0 #FFBB00;
}

.microsoft:after, .microsoft::after {
    z-index: 1;
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 2em; height: 2em;
    background-image: linear-gradient(90deg, white 70%, rgba(255,255,255,0));
}

/* Style the links */
.vanity {
    color: #333;
    text-align: center;
    font: .75em 'Segoe UI', Tahoma, Helvetica, Sans-Serif;
}

.vanity a, .microsoft a {
    color: #1570A6;
    transition: color .5s;
    text-decoration: none;
}

.vanity a:hover, .microsoft a:hover {
    color: #F65314;
}

/* Style toggle button */
.toggle {
	display: block;
    margin: 2em auto;
}

JavaScript

$(".toggle").on("click", function () {
    $(".marquee").toggleClass("microsoft");
});