.loadingSpinner {
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 10px;
    position: absolute;
    left: 0px;
    top: 0px;
    margin-left: 0px;
    margin-top: 0px;
    background-color:#393939;
    z-index: 1000;
    justify-content: center;
    align-items: center;
    display: flex;
}

.loadingSpinner > div {
    background-color: #fff;
    height: 50px;
    width: 6px;
    display: inline-block;
    margin: 2px;

    -webkit-animation: stretchdelay 1.2s infinite ease-in-out;
    animation: stretchdelay 1.2s infinite ease-in-out;
}

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

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

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

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

@-webkit-keyframes stretchdelay {
    0%, 40%, 100% { -webkit-transform: scaleY(0.4) }
    20% { -webkit-transform: scaleY(1.0) }
}

@keyframes stretchdelay {
    0%, 40%, 100% {
        transform: scaleY(0.4);
        -webkit-transform: scaleY(0.4);
    }  20% {
           transform: scaleY(1.0);
           -webkit-transform: scaleY(1.0);
       }
}