#menu div.loading{
    position: absolute;
    width: calc(100% - 5em);
    height: 100%;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    background-color: rgba(255,255,255,.7);
    z-index: 200;
    -webkit-animation:  .4s ease 0s normal forwards 1 ipmfadeinloader; /* Safari, Chrome and Opera > 12.1 */
    -moz-animation: .4s ease 0s normal forwards 1 ipmfadeinloader; /* Firefox < 16 */
    -ms-animation: .4s ease 0s normal forwards 1 ipmfadeinloader; /* Internet Explorer */
    -o-animation: .4s ease 0s normal forwards 1 ipmfadeinloader; /* Opera < 12.1 */
    animation: .4s ease 0s normal forwards 1 ipmfadeinloader;
}

@keyframes ipmfadeinloader {
    0% { opacity:0; }
    66% { opacity:0; }
    100% { opacity:1; }
}

/* Firefox < 16 */
@-moz-keyframes ipmfadeinloader {
    0% { opacity:0; }
    66% { opacity:0; }
    100% { opacity:1; }
}

/* Safari, Chrome and Opera > 12.1 */
@-webkit-keyframes ipmfadeinloader {
    0% { opacity:0; }
    66% { opacity:0; }
    100% { opacity:1; }
}

/* Internet Explorer */
@-ms-keyframes ipmfadeinloader {
    0% { opacity:0; }
    66% { opacity:0; }
    100% { opacity:1; }
}

#menu div.loading > span{
    position: absolute;
    display: inline-block;
    left: 50%;
    margin-left: -70px;
    width: 140px;
    height: 140px;
    background: url(../img/loader_green_large.gif) center center no-repeat #FFF;
    top: 50%;
    margin-top: -70px;
}