BODY {
  font-family: Arial;
}

.main_table {
  background-color: #808080;
}

.main_table_top_border {
  background-image: URL(imgs/top.jpg);
}

.main_table_left_border {
  background-image: URL(imgs/left.jpg);
}

.main_table_right_border {
  background-image: URL(imgs/right.jpg);
}

.main_table_bottom_border {
  background-image: URL(imgs/bottom.jpg);
}