.loader{
    position:fixed;
    width:300px;
    height:100px;
    left:50%;
    top:50%;
    margin-left:-150px;
    margin-top:-50px;
    border-radius:20px;
}
.loader .ball {
    position: absolute;
    width: 0;
    height: 100%;
    left: -15px;
    bottom: 0;
    background: #4a9;
    opacity: 0;
    -webkit-animation: moveBall 2.8s infinite linear;
    animation: moveBall 2.8s infinite linear;
}

.loader .ball.one {
    -webkit-animation-delay: 0s;
    animation-delay: 0s;
}

.loader .ball.two {
    -webkit-animation-delay: 0.2s;
    animation-delay: 0.2s;
}

.loader .ball.three {
    -webkit-animation-delay: 0.4s;
    animation-delay: 0.4s;
}

.loader .ball.four {
    -webkit-animation-delay: 0.6s;
    animation-delay: 0.6s;
}

.loader .ball.five {
    -webkit-animation-delay: 0.8s;
    animation-delay: 0.8s;
}

.loader .ball.six {
    -webkit-animation-delay: 1s;
    animation-delay: 1s;
}

.loader .ball .inner {
    height: 30px;
    width: 30px;
    position: absolute;
    background: #0067b3;
    bottom: 0;
    left: 0;
    margin-left: -15px;
    border-radius: 100%;
}

.loader .ball.center {
    left: 50%;
    top: 50%;
    background: none;
    -webkit-animation: centerBall 2.8s infinite cubic-bezier(0.55, 0.055, 0.675, 0.19);
    animation: centerBall 2.8s infinite cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.loader .ball.center .inner {
    top: -15px;
}

@-moz-keyframes centerBall {
    0%, 25%, 100% {
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    }

    75% {
        opacity: 0;
    }
}

@-webkit-keyframes centerBall {
    0%, 25%, 100% {
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    }

    75% {
        opacity: 0;
    }
}

@-o-keyframes centerBall {
    0%, 25%, 100% {
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    }

    75% {
        opacity: 0;
    }
}

@keyframes centerBall {
    0%, 25%, 100% {
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    }

    75% {
        opacity: 0;
    }
}

@-moz-keyframes moveBall {
    0% {
        left: -10%;
        opacity: 0;
        -webkit-animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
        animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
    }

    10% {
        opacity: 0;
    }

    28.7% {
        transform: rotate(-180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: linear;
        animation-timing-function: linear;
    }

    71.3% {
        transform: rotate(180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
        animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    90% {
        opacity: 0;
    }

    100% {
        left: 110%;
        transform: rotate(deg);
        opacity: 0;
    }
}

@-webkit-keyframes moveBall {
    0% {
        left: -10%;
        opacity: 0;
        -webkit-animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
        animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
    }

    10% {
        opacity: 0;
    }

    28.7% {
        transform: rotate(-180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: linear;
        animation-timing-function: linear;
    }

    71.3% {
        transform: rotate(180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
        animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    90% {
        opacity: 0;
    }

    100% {
        left: 110%;
        transform: rotate(deg);
        opacity: 0;
    }
}

@-o-keyframes moveBall {
    0% {
        left: -10%;
        opacity: 0;
        -webkit-animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
        animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
    }

    10% {
        opacity: 0;
    }

    28.7% {
        transform: rotate(-180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: linear;
        animation-timing-function: linear;
    }

    71.3% {
        transform: rotate(180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
        animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    90% {
        opacity: 0;
    }

    100% {
        left: 110%;
        transform: rotate(deg);
        opacity: 0;
    }
}

@keyframes moveBall {
    0% {
        left: -10%;
        opacity: 0;
        -webkit-animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
        animation-timing-function: cubic-bezier(0.55, 0.085, 0.68, 0.53);
    }

    10% {
        opacity: 0;
    }

    28.7% {
        transform: rotate(-180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: linear;
        animation-timing-function: linear;
    }

    71.3% {
        transform: rotate(180deg);
        left: 50%;
        opacity: 1;
        -webkit-animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
        animation-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    90% {
        opacity: 0;
    }

    100% {
        left: 110%;
        transform: rotate(deg);
        opacity: 0;
    }
}