.sk-chasing-dots {
    margin: 40px auto;
    width: 40px;
    height: 40px;
    position: relative;
    text-align: center;
    -webkit-animation: sk-chasingDotsRotate 2s infinite linear;
    animation: sk-chasingDotsRotate 2s infinite linear;
}

    .sk-chasing-dots .sk-child {
        width: 60%;
        height: 60%;
        display: inline-block;
        position: absolute;
        top: 0;
        background-color: #333;
        border-radius: 100%;
        -webkit-animation: sk-chasingDotsBounce 2s infinite ease-in-out;
        animation: sk-chasingDotsBounce 2s infinite ease-in-out;
    }

    .sk-chasing-dots .sk-dot2 {
        top: auto;
        bottom: 0;
        -webkit-animation-delay: -1s;
        animation-delay: -1s;
    }

@-webkit-keyframes sk-chasingDotsRotate {
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes sk-chasingDotsRotate {
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@-webkit-keyframes sk-chasingDotsBounce {
    0%, 100% {
        -webkit-transform: scale(0);
        transform: scale(0);
    }

    50% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

@keyframes sk-chasingDotsBounce {
    0%, 100% {
        -webkit-transform: scale(0);
        transform: scale(0);
    }

    50% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}



.spinner {
    margin: 20px auto;
    width: 50px;
    height: 40px;
    text-align: center;
    font-size: 10px;
}

    .spinner > div {
        background-color: #333;
        height: 100%;
        width: 6px;
        display: inline-block;
        -webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out;
        animation: sk-stretchdelay 1.2s infinite ease-in-out;
    }

    .spinner .rect2 {
        -webkit-animation-delay: -1.1s;
        animation-delay: -1.1s;
    }

    .spinner .rect3 {
        -webkit-animation-delay: -1.0s;
        animation-delay: -1.0s;
    }

    .spinner .rect4 {
        -webkit-animation-delay: -0.9s;
        animation-delay: -0.9s;
    }

    .spinner .rect5 {
        -webkit-animation-delay: -0.8s;
        animation-delay: -0.8s;
    }

@-webkit-keyframes sk-stretchdelay {
    0%, 40%, 100% {
        -webkit-transform: scaleY(0.4)
    }

    20% {
        -webkit-transform: scaleY(1.0)
    }
}

@keyframes sk-stretchdelay {
    0%, 40%, 100% {
        transform: scaleY(0.4);
        -webkit-transform: scaleY(0.4);
    }

    20% {
        transform: scaleY(1.0);
        -webkit-transform: scaleY(1.0);
    }
}