Snow (HW-acceleration)

added the 3rd dimension

by Kieran Dang

HTML

<div class="container">
    <div class="snow">    
        <div class="snowflake">&#10053;</div>
        <div class="snowflake">&#10052;</div>
        <div class="snowflake">&#10053;</div>
        <div class="snowflake">&#10052;</div>
    </div>
</div>

CSS

body {
    margin: 0px;    
}
.container{        
    background: #666 url(http://girliemac.com/sandbox/images/tree.jpg) no-repeat -60px 0;
    width: 320px;
    height: 480px;        
    position: relative;        
}

@-webkit-keyframes fade{
    0%   { opacity: 0; }
    10%  { opacity: 0.8; }
    100% { opacity: 0; }
}
@-webkit-keyframes fall{
    from {top: 10px;}
    to {top: 470px;}
}
@-webkit-keyframes accumulate{
    from {height: 0px; opacity: 0}
    to {height: 20px; opacity: .75;}
}
@-webkit-keyframes spin{
    0%   { -webkit-transform: rotate(-180deg) translate3d(0, 0, 0);}
    100% { -webkit-transform: rotate(180deg) translate3d(10px, 75px, 0);}
}
.snowflake {
    -webkit-transform: translate3d(0, 0, 0);
    position: absolute;
    top: -40px;
    -webkit-animation-name: fall, fade, spin;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-direction: normal; 
    -webkit-animation-timing-function: ease-in;
}
.snowflake {
    color: #fff;
    font-size: 2em;
    position: absolute;    
}
.snowflake:first-child{
    left: 40px;
    -webkit-animation-duration: 5s;   
}
.snowflake:nth-child(2) {
    font-size: 1.8em;
    left: 120px;
    -webkit-animation-duration: 7s;    
}
.snowflake:nth-child(3) {
    left: 200px;
    -webkit-animation-duration: 8s;    
}
.snowflake:last-child {
    font-size: 1.5em;
    left: 280px;
    -webkit-animation-duration: 6s;    
}