.calc_field_set{
  width: 100%;
  height: 150px;
  background: #ececec;
  margin-bottom: 10px;
  padding: 10px;
}

.select_value {
  width: 90%;
}

#first_field{
  width: 150px;
}

#second_field{
  width: 100px;
}

#third_field{
  width: 220px;
}

#fourth_field{
  width: 150px;
}

.calc_block{
  height: 300px;
  border: 2px solid #4c96cc;
  border-radius: 5px;
}

.calc_field{
  float: left;
}

.calc_input{
  text-align: right;
  width: 100%;
}

.button_field{
  width: 100%;
  height: 30px;
  margin-top: 15px;
  display: inline-block;
}

.button_block{
  width: 100px;
  margin-right: auto;
  margin-left: auto;
}

#calc_button{
  cursor: pointer;
  background: #00cc79;
  padding: 6px;

  border-radius: 5px;
  color: black;
  text-shadow: 1px 1px 1px #fff;

}

#calc_button:hover{
  text-underline: none;
  text-decoration: none;
}

#calc_button:hover{
  background: #06dec4;
}

#calc_button:active{
  background: #00cc79;
}

/*@media screen and (max-width: 1200px) {*/
@media screen and (max-width: 1200px) {
  #first_field, #second_field, #third_field, #fourth_field{
    width: auto;
    padding: 5px;
    height: auto;
  }

  .calc_field_set, .calc_block{
    height: auto;
  }

  .calc_field{
    width: 600px !important;
    margin-left: auto;
    margin-right: auto;
    float: none;
  }

  .calc_field label{
    width: 100%;
  }

  .calc_input{
    text-align: right;
    width: 100%;
  }
}

@media screen and (max-width: 960px) {
  .calc_field{
    width: 300px !important;
    margin-left: auto;
    margin-right: auto;
    float: none;
  }
}