.sf_blog_extra4 {
    width: 900px;
    height: 30px;
    background-image: none;
    background-repeat: repeat-x;
 }

 .sf_blog_header_wrapper {
    clear: both;
    position: relative;
    width: 900px;
    height: 100px;
    background-position: left;
    background-image: url(images/Jessies_play_house.jpg);
    background-repeat: no-repeat;
 }