.mask {
background-color: #FFF;
width: 100%;
height: 100%;
position: fixed;
top:0px;
left:0px;
z-index: 100000;
}
#spinner {
border: 2px solid #f3f3f3;
border-top: 3px solid #555;
border-radius: 50%;
width: 60px;
height: 60px;
animation: spin 1s linear infinite;
position: absolute;
top: 50%;
left: 50%;
margin: -30px 0 0 -30px;
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
@-webkit-keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}