Hi am trying to create a simple blank html page with a spinner at center.For example something like in that image.
Find a spinner gif online- http://www.ajaxload.info or create one yourself. Then use the following code to centre it in your page:
.spinner{
position: absolute;
height: 100px;
width: 100px;
top: 50%;
left: 50%;
margin-left: -50px;
margin-top: -50px;
background: url(/link/to/your/image);
background-size: 100%;
}