table {
 font-size: 12px;
 text-align: justify
}
.ex3 {
 background-image : url(images/content_r9_c11.jpg);
 background-repeat : repeat-y;
 background-color : #ffffff;
}
.ex4 {
# background-image : url(images/content_r9_c32.jpg);
 background-repeat : repeat-y;
}