.app-util-loader {
    border: 8px solid #EEE;
    border-radius: 50%;
    border-top: 8px solid #3498db;
    width: 35px !important;
    height: 35px !important;
    margin-bottom: 10px !important;
    margin:auto;
    -webkit-animation: app-util-spin 2s linear infinite; /* Safari */
    animation: app-util-spin 2s linear infinite;
}

.app-util-loader-xl {
    border: 10px solid #EEE;
    border-radius: 50%;
    border-top: 10px solid #3498db;
    width: 70px !important;
    height: 70px !important;
    margin-bottom: 10px !important;
    -webkit-animation: app-util-spin 2s linear infinite; /* Safari */
    animation: app-util-spin 2s linear infinite;
}


.app-util-center {
    width: 250px;
    display: block;
    margin: 0 auto;
    top: 50%;
    left: 50%;
    position: absolute;
}

@-webkit-keyframes app-util-spin {
    0% {
        -webkit-transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
    }
}

@keyframes app-util-spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}