.spinner-container{
    display: block !important;
    margin: 0 !important;
    cursor: wait;
    /* background: rgba(255,255,255,.8); */
    background: rgba(48, 54, 65, 0.7);
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 9999999999;
    top: 0;
    left: 0;
    /*
    -webkit-backface-visibility : hidden;
    -moz-backface-visibility    : hidden;
    backface-visibility         : hidden;
    */
    visibility                  : hidden;
      
    opacity: 1;
    
    /*
    -webkit-transition: all 0.1s;
    -moz-transition: all 0.1s;
    transition: all 0.1s;
    */
}

.spinner-container.show-spinner{
    opacity: 1 !important;
    visibility: visible !important;
}

.spinner:after {
    content: '';
    width: 50px;
    height: 50px;
    margin: auto;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    border-radius: 100%;
    /*
    border: 8px solid rgba(48, 54, 65, 0.2);
    border-bottom-color: #303641;
    */
    border: 8px solid rgba(255, 255, 255, 0.2);
    border-bottom-color: rgba(255, 255, 255, .7);
    animation: spin 1s linear 0s infinite;
}

@-moz-keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
@-webkit-keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}