.modal {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    outline: 0;
    -webkit-overflow-scrolling: touch;
    background-color: rgb(204, 204, 204);  
    filter: alpha(opacity=35);  
    background-color: rgba(204, 204, 204, 0.35); 
    z-index: 9999;
}

.spinner {
    margin-left: -75px;
    width: 150px;
    text-align: center;
    position:absolute;
    top:50%;
    left:50%;
}
   
.spinner > div {
    width: 30px;
    height: 30px;
    background-color: rgb(81, 154, 252);
   
    border-radius: 100%;
    display: inline-block;
    -webkit-animation: bouncedelay 1.4s infinite ease-in-out;
    animation: bouncedelay 1.4s infinite ease-in-out;
    /* Prevent first frame from flickering when animation starts */
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
   
.spinner .bounce1 {
    -webkit-animation-delay: -0.32s;
    animation-delay: -0.32s;
}
   
.spinner .bounce2 {
    -webkit-animation-delay: -0.16s;
    animation-delay: -0.16s;
}
   
@-webkit-keyframes bouncedelay {
    0%, 80%, 100% { -webkit-transform: scale(0.0) }
    40% { -webkit-transform: scale(1.0) }
}
   
@keyframes bouncedelay {
    0%, 80%, 100% {
      transform: scale(0.0);
      -webkit-transform: scale(0.0);
    } 40% {
      transform: scale(1.0);
      -webkit-transform: scale(1.0);
    }
}