div {
  position: absolute;
}

.b01 {
  background: url("https://speedata.fr/account/creas/theramp/Calipage/CaliDrive/300x250/img/b01.jpg") no-repeat;
  height: 250px;
  width: 300px;
  top: 0px;
  left: 0px;
}

.b02 {
  background: url("https://speedata.fr/account/creas/theramp/Calipage/CaliDrive/300x250/img/b02.jpg") no-repeat;
  height: 250px;
  width: 300px;
  top: 0px;
  left: 0px;
}

.b03 {
  cursor: pointer;
  color: white;
  text-align: center;
  font-size: 20px;
  font-family: 'Arial';
  font-weight: bold;
  height: 250px;
  width: 300px;
  top: -77px;
  left: 0px;
  padding-top: 200px;
  word-wrap: break-word;
}

.b03 div {
  display: block;
  position: relative;
}