.main_block {

  margin-top: 20px;
  margin-left: 5%;
  margin-right: 5%;
  margin-bottom: 5%;
}

.main_block .top_heading {
  color: green;
  font-weight: bold;
  padding: 20px;
  font-size: 30px;
  text-align: center;
}

.main_block .data_block {
  font-size: 14px;
  text-align: left;
  color: black;
}

.main_block .data_block h4 {
  color:black;
  font-weight: bold;
  font-size: 18px;
}