.TeacherPhoto 
{
    float: left;
    margin-right: 10px;
    margin-bottom: 5px;
    width: 200px; 
}

.TeacherList li
{
    width:130px;
    height:180px;
    float:left;
    text-align:center;
    display:inline;
    background:none;
}

.TeacherListPhoto
{
    width:100px;
    height:100px;
    display:block;
    margin-left:auto;
    margin-right:auto;
}