#main{
    padding: 0;
    margin: auto;
    display: block;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}
body{
	background-image: url("bak.jpg");
    background-size: cover;
    height: 100%;
    overflow: hidden;
    cursor: none;
}