body {
    /* Text-Sizing with ems: http://www.clagnut.com/blog/348/ */
    font-family: Verdana, "Trebuchet MS", "Lucida Grande", Helvetica, Arial, sans-serif;
    color: #CCCCCC;
    background-color: #111111;
    font-size: 62.5%; /* This sets the default font size to be equivalent to 10px */
    margin: 0px 10px 0px 10px;
}

body {
    /* Text-Sizing with ems: http://www.clagnut.com/blog/348/ */
    font-family: Verdana, "Trebuchet MS", "Lucida Grande", Helvetica, Arial, sans-serif;
    color: #CCCCCC;
    background: url('./images/your_pic.png');
    font-size: 62.5%; /* This sets the default font size to be equivalent to 10px */
    margin: 0px 10px 0px 10px;
}