.loader {
    position: fixed;
    left: 0px;
    top: 0px;
    height: 5em;
    width: 5em;
    z-index: 9999;
    background: url('Images/LoginLoading1.gif') 50% 50% no-repeat rgb(249,249,249);
}

.exactCenter {
    width: 200px;
    height: 200px;
    position: fixed;
    background-color: transparent;
    top: 50%;
    left: 50%;
    margin-top: -150px;
    margin-left: -100px;
    position: fixed;
}