.loader {
	position: fixed;
	left: 0px; 
	top: 0px; 
	width: 100%; 
	height: 100%; 
	z-index: 9999; 
	text-align: center;
	/*background: url('image/loading-dots.gif') 50% 50% no-repeat rgb(249,249,249);*/ 
	background:rgb(249,249,249);
}
.helper {
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}