html, body {
    height: 100%;
    background-image: url('../../images/sf.gif');
    background-repeat: repeat;
}

html {
    display: table;
    margin: auto;
}

body {
    display: table-cell;
    vertical-align: middle;
    text-align: center;
    font-size: 20px;
    color: white;
}

img.animated-gif{
  width: 66px;
  height: auto;
}