.history_list {
  margin-top: 30px;
  margin-bottom: 95px;
}
.history_el {
  margin-bottom: 40px;
  display: flex;
}

.history_tit {
  text-align: center;
}

.history_col:first-child {
  padding-right: 20px;
}

.history_col:last-child {
  padding-left: 20px;
}

.history_col {
  display: flex;
  vertical-align: middle;
  width: 50%;
  /* color: #777; */
}

.history_col img {
  border-radius: 10px;
  box-shadow: 0px 0px 15px #444, 0px 0px 15px #444;
  display: block;
  margin: auto;
  max-width: 100%;
}
.history_txt {
  padding-top: 20px;
  border-top: 1px solid #dddddd;
  border-bottom: 1px solid #dddddd;
}
 
@media screen and (max-width:999px) {
  .history_col {
    line-height:22px;
  }
  .history_tit {
    font-size:40px;
  }
}

@media screen and (min-width:800px) and (max-width:999px) {
  .history_col:last-child,
  .history_col_txt:last-child {
    padding-left:10px;
  }
  .history_col:first-child {
    padding-right:10px;
  }
}

@media screen and (max-width:799px) {
  .history_col {
    display:block;
    width:100%;
    padding: 0;
  }
  
  .history_col:last-child,
  .history_col_txt:last-child {
    padding-left:0;
  }
  .history_col:first-child {
    padding-right:0;
  }
  
  .history_el {
    margin-bottom:30px;
    flex-wrap:wrap;
  }
  .history_col_txt {
    order: 1;
    margin-top:15px;
    text-align: center;
    padding: 0 3px;
  }
}

@media screen and (max-width:499px) {
  .history_tit {
    font-size: 30px;
  }
}