.loading_ {
    animation-duration: 1s;
    animation-fill-mode: forwards;
    animation-iteration-count: infinite;
    animation-name: wave;
    animation-timing-function: linear;
    -webkit-animation-duration: 1s;
    -webkit-animation-fill-mode: forwards;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-name: wave;
    -webkit-animation-timing-function: linear;
    -moz-animation-duration: 1s;
    -moz-animation-fill-mode: forwards;
    -moz-animation-iteration-count: infinite;
    -moz-animation-name: wave;
    -moz-animation-timing-function: linear;
    background: #dddddd;
    background-image: -webkit-gradient(linear,  left center,  right center,  from(#dddddd),  color-stop(.2,  #f5f5f5),  color-stop(.4,  #e5e5e5),  to(#dddddd));
    background-image: -webkit-linear-gradient(left,  #dddddd 0%,  #f5f5f5 20%,  #e5e5e5 40%,  #dddddd 100%);
    background-image: -moz-gradient(linear,  left center,  right center,  from(#dddddd),  color-stop(.2,  #f5f5f5),  color-stop(.4,  #e5e5e5),  to(#dddddd));
    background-image: -moz-linear-gradient(left,  #dddddd 0%,  #f5f5f5 20%, #e5e5e5 40%, #dddddd 100%);
    background-repeat: no-repeat;
}

.reverse-direction .loading_ {
    -webkit-animation-direction: reverse;
    -moz-animation-direction: reverse;
}

.loading_ div {

}

@-webkit-keyframes wave {
    0% {
        background-position: -468px 0;
    }
    100% {
        background-position: 468px 0;
    }
}
@-moz-keyframes wave {
    0% {
        background-position: -468px 0;
    }
    100% {
        background-position: 468px 0;
    }
}