.ms-preload {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #eee;
    z-index: 50000;
    height: 100%;
    width: 100%;
}

.spinner {
    width: 60px;
    height: 60px;
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    text-align: center;
    -webkit-animation: sk-rotate 2s infinite linear;
    animation: sk-rotate 2s infinite linear;
}

.dot1, .dot2 {
    width: 60%;
    height: 60%;
    display: inline-block;
    position: absolute;
    top: 0;
    background-color: #607D8B;
    border-radius: 100%;
    -webkit-animation: sk-bounce 2s infinite ease-in-out;
    animation: sk-bounce 2s infinite ease-in-out;
}

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

@-webkit-keyframes sk-rotate {
    100% {
        -webkit-transform: rotate(360deg);
    }
}
@keyframes sk-rotate {
    100% {
        transform: rotate(360deg);
        -webkit-transform: rotate(360deg);
    }
}
@-webkit-keyframes sk-bounce {
    0%, 100% {
        -webkit-transform: scale(0);
    }
    50% {
        -webkit-transform: scale(1);
    }
}
@keyframes sk-bounce {
    0%, 100% {
        transform: scale(0);
        -webkit-transform: scale(0);
    }
    50% {
        transform: scale(1);
        -webkit-transform: scale(1);
    }
}