.spinner{
    display: none;
    position: fixed;
    width: 20%;
    height: 20%;
    top: 0;
    left: 0;
    z-index: 999;
    background: rgba(255,255,255,0.8) url("images/loader.gif") center no-repeat;
}
/* Turn off scrollbar when body element has the loading class */
body.loading{
    overflow: hidden;   
}
/* Make spinner image visible when body element has the loading class */
body.loading .spinner{
    display: block;
}

a.pdf-download {
    color: #009ddc;
}