.sf_blog_extra4 span {
    float: right;
    height: 120px;
    min-height: 120px;
    width: 696px;
    background-position: right center;
    background-image: url(images/header.jpg);
    background-repeat: no-repeat;
 }

 .sf_blog_extra4 {
    height: 120px;
    min-height: 120px;
    width: 900px;
    border-top: 2px solid #fff;
    border-bottom: 2px #fff solid;
    background-position: left bottom;
    background-image: url(images/greek_letter_pbs.jpg);
    background-repeat: no-repeat;
 }

 .sf_blog_sub_header {
    text-align: left;
    padding-left: 10px;
    padding-top: 5px;
    display: block;
    width: 880px;
    height: 30px;
    font-weight: normal;
    overflow: hidden;
    font-size: 16px;
    color: #4E71E6;
    background-image: none;
    background-repeat: no-repeat;
 }