.preloader {
    top: 0;
    position: fixed;
    margin: auto;
    width: 70px;
    height: 30px;
    text-align: center;
    font-size: 10px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
}

.preloader > div {
    background-color: #fff;
    height: 10px;
    width: 10px;
    border-radius: 50%;
    display: inline-block;

    -webkit-animation: stretchdelay 0.7s infinite ease-in-out;
    animation: stretchdelay 0.7s infinite ease-in-out;
}

.preloader .circ2 {
    -webkit-animation-delay: -0.6s;
    animation-delay: -0.6s;
}

.preloader .circ3 {
    -webkit-animation-delay: -0.5s;
    animation-delay: -0.5s;
}

.preloader .circ4 {
    -webkit-animation-delay: -0.4s;
    animation-delay: -0.4s;
}

.preloader .circ5 {
    -webkit-animation-delay: -0.3s;
    animation-delay: -0.3s;
}

@-webkit-keyframes stretchdelay {
    0%, 40%, 100% { -webkit-transform: translateY(-10px) }  
    20% { -webkit-transform: translateY(-20px) }
}

@keyframes stretchdelay {
    0%, 40%, 100% { 
        transform: translateY(-10px);
        -webkit-transform: translateY(-10px);
    } 20% {
        transform: translateY(-20px);
        -webkit-transform: translateY(-20px);
    }
}