.loader-spinner {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 150px;
    height: 150px;
    margin: -75px 0 0 -75px;
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid #3498db;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
    z-index: 1051;
}
.loader-spinner-inline {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 6px solid #f3f3f3;
    border-radius: 50%;
    border-top: 6px solid #3498db;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
    z-index: 1051;
}
.loader-dimmer{
    top: 0;
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1051;
    background-color: rgba(255, 255, 255, 0.6);
}
@-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
}

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