Windows phone loading animation

<span>Loading</span>

<span class="l-1"></span>

<span class="l-2"></span>

<span class="l-3"></span>

<span class="l-4"></span>

<span class="l-5"></span>

<span class="l-6"></span>

body {

    font-size: 14px;

    font-family: 'Lucida Grande', Helvetica, Arial, sans-serif;

    color: #333;

    text-align: center;

    margin-top: 100px;

}

span {

    display: block; 

    margin: 0 auto;

}

span[class*="l-"] {

    height: 4px; width: 4px;

    background: #000;

    display: inline-block;

    margin: 12px 2px;

    border-radius: 100%;

    -webkit-border-radius: 100%;

    -moz-border-radius: 100%;

    -webkit-animation: loader 4s infinite;

    -webkit-animation-timing-function: cubic-bezier(0.030, 0.615, 0.995, 0.415);

    -webkit-animation-fill-mode: both;

    -moz-animation: loader 4s infinite;

    -moz-animation-timing-function: cubic-bezier(0.030, 0.615, 0.995, 0.415);

    -moz-animation-fill-mode: both;

    -ms-animation: loader 4s infinite;

    -ms-animation-timing-function: cubic-bezier(0.030, 0.615, 0.995, 0.415);

    -ms-animation-fill-mode: both;

    animation: loader 4s infinite;

    animation-timing-function: cubic-bezier(0.030, 0.615, 0.995, 0.415);

    animation-fill-mode: both;

}

span.l-1 {-webkit-animation-delay: 1s;animation-delay: 1s;-ms-animation-delay: 1s;-moz-animation-delay: 1s;}

span.l-2 {-webkit-animation-delay: 0.8s;animation-delay: 0.8s;-ms-animation-delay: 0.8s;-moz-animation-delay: 0.8s;}

span.l-3 {-webkit-animation-delay: 0.6s;animation-delay: 0.6s;-ms-animation-delay: 0.6s;-moz-animation-delay: 0.6s;}

span.l-4 {-webkit-animation-delay: 0.4s;animation-delay: 0.4s;-ms-animation-delay: 0.4s;-moz-animation-delay: 0.4s;}

span.l-5 {-webkit-animation-delay: 0.2s;animation-delay: 0.2s;-ms-animation-delay: 0.2s;-moz-animation-delay: 0.2s;}

span.l-6 {-webkit-animation-delay: 0;animation-delay: 0;-ms-animation-delay: 0;-moz-animation-delay: 0;}

@-webkit-keyframes loader {

    0% {-webkit-transform: translateX(-30px); opacity: 0;}

    25% {opacity: 1;}

    50% {-webkit-transform: translateX(30px); opacity: 0;}

    100% {opacity: 0;}

}

@-moz-keyframes loader {

    0% {-moz-transform: translateX(-30px); opacity: 0;}

    25% {opacity: 1;}

    50% {-moz-transform: translateX(30px); opacity: 0;}

    100% {opacity: 0;}

}

@-keyframes loader {

    0% {-transform: translateX(-30px); opacity: 0;}

    25% {opacity: 1;}

    50% {-transform: translateX(30px); opacity: 0;}

    100% {opacity: 0;}

}

@-ms-keyframes loader {

    0% {-ms-transform: translateX(-30px); opacity: 0;}

    25% {opacity: 1;}

    50% {-ms-transform: translateX(30px); opacity: 0;}

    100% {opacity: 0;}

}