body {
}
.main-loader {
    background-color: #244a87;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    opacity: 0.7;
    display: none;
}

.sk-cube-grid {
    width: 100px;
    height: 100px;
    margin: 25% auto;
}

    .sk-cube-grid .sk-cube {
        width: 33%;
        height: 33%;
        background-color: #fff;
        float: left;
        -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
        animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;
    }

    .sk-cube-grid .sk-cube1 {
        /*-webkit-animation-delay: 0.2s;*/
        animation-delay: 0.2s;
    }

    .sk-cube-grid .sk-cube2 {
        /*-webkit-animation-delay: 0.3s;*/
        animation-delay: 0.3s;
    }

    .sk-cube-grid .sk-cube3 {
        /*-webkit-animation-delay: 0.4s;*/
        animation-delay: 0.4s;
    }

    .sk-cube-grid .sk-cube4 {
        /*-webkit-animation-delay: 0.1s;*/
        animation-delay: 0.1s;
    }

    .sk-cube-grid .sk-cube5 {
        /*-webkit-animation-delay: 0.2s;*/
        animation-delay: 0.2s;
    }

    .sk-cube-grid .sk-cube6 {
        /*-webkit-animation-delay: 0.3s;*/
        animation-delay: 0.3s;
    }

    .sk-cube-grid .sk-cube7 {
        /*-webkit-animation-delay: 0s;*/
        animation-delay: 0s;
    }

    .sk-cube-grid .sk-cube8 {
        /*-webkit-animation-delay: 0.1s;*/
        animation-delay: 0.1s;
    }

    .sk-cube-grid .sk-cube9 {
        /*-webkit-animation-delay: 0.2s;*/
        animation-delay: 0.2s;
    }

@-webkit-keyframes sk-cubeGridScaleDelay {
    0%, 70%, 100% {
        -webkit-transform: scale3D(1, 1, 1);
        transform: scale3D(1, 1, 1);
    }

    35% {
        -webkit-transform: scale3D(0, 0, 1);
        transform: scale3D(0, 0, 1);
    }
}

@keyframes sk-cubeGridScaleDelay {
    0%, 70%, 100% {
        -webkit-transform: scale3D(1, 1, 1);
        transform: scale3D(1, 1, 1);
    }

    35% {
        -webkit-transform: scale3D(0, 0, 1);
        transform: scale3D(0, 0, 1);
    }
}