.main_images {
  top: 102px;
  left: 8px;
  width: 761px;
  height: 282px;
}

.main_images ul li {
  display: inline;
  list-style: none;
  position: absolute;
  top: 0px;
  width: 187px;
  height: 282px;
  background: #fff;
  overflow: hidden;
}

.main_images ul li a {
  font-size: 278px; /* make sure link occupies whole image area */
}

#image_01 {
  left: 0px;
}

#image_02 {
  left: 191px;
}

#image_03 {
  left: 382px;
}

#image_04 {
  left: 573px;
  width: 188px !important;
}