.spinner {
    position: fixed;
    top: 0;
    left: 0;
    text-align:center;
    z-index:1234;
    overflow: auto;
    width: 100%; /* width of the spinner gif */
    height: 100%; /*hight of the spinner gif +2px to fix IE8 issue */
    background: rgba( 255, 255, 255, .8 );
	display: none;
}

.spinner img  
{
    position: fixed;
    top: 20%;
    left:50%
    
}