.bg_white {
  /*  background-color: rgba(255, 255, 255, 0.45);*/
  padding: 20px;
  position: relative;
}

#first_gene > p {
  margin: 30px 0;
}

.timeline {
  margin: 70px 0;
}

#tm2 {
  margin-bottom: 0;
}

.timeline.origin {
  margin-top: 0;
}

.timeline > li {
/*  overflow: hidden;*/
  margin: 0;
  position: relative;
  /*  height: 150px;*/
  padding: 20px 0;
}

.timeline-date {
  /*      width: 20%;*/
  float: left;
  font-size: 1.3em;
  /*      text-align: center;*/
}

.timeline-content {
  border-top: 3px #e5e5d1 solid;
  padding-left: 30px;
  padding: 30px 0;
  margin: 15px;
  margin-left: 15%;
}

.history_img {
  position: absolute;
  z-index: 10;
  min-width: 200px;
}

.history_img > img{
  width: 100%;
}

#his_1 {
  right: 0;
  width: 25%;
  top: -50px;
/*  position: absolute;*/
}

#histry_img_flex{
  right: 0;
  display: flex;
  /* flex-direction: column; */
  width: 25%;
  flex-wrap: wrap;
  top: -270px;
  align-items: flex-start;
}

/*
#his_2 {
  right: 0;
  width: 30%;
  top: 10%;
}

#his_3 {
  right: 0;
    top: 20%;
  width: 25%;
}
*/

#first_gene{
  max-width: 800px;
  width: 70%;
}

#his_4 {
  right: 0;
  top: -142px;
  width: 30%;
}

#his_5 {
  right: 0;
  top: -150px;
  width: 18%;
}

#his_6 {
  left: 40%;
  /*  top: 48%;*/
  width: 25%;
}

#his_7 {
  width: 18%;
  right: 0;
}

#his_8 {
  width: 25%;
  left: 17%;
  top: 50px;
}

#his_9 {
  width: 18%;
  right: 0;
  top: -50px;
}

#his_10 {
  right: 22%;
  width: 22%;
}

#his_11 {
  width: 18%;
  right: 0;
  top: 50px;
}

#his_12 {
  width: 50%;
}

.text_right{
  padding-left: 30%;
/*  padding-right: 21%;*/
}

.history_img > p{
  text-align: center;
  font-size: 0.8em;
}

.timeline-content >p{
  width: 70%;
}

@media screen and (max-width: 900px){
  .content{
    margin-bottom: 0;
  }

  .history_img{
    position: static;
  }

  #histry_img_flex{
/*    flex-wrap: nowrap;*/
    width: 100%;
  }

  #histry_img_flex> img{
    width: 50%;
  }

  #first_gene{
    width: 100%;
  }

  .timeline-content > p{
    width: 100%;
  }

  .text_right{
    padding-left: 0;
  }

  #his_4{
    width: 50%;
  }

  #his_12_wrap{
    text-align: right;
  }
}

@media screen and (max-width: 630px) {
  .timeline-date {
    float: none;
  }

  .history_img {
    max-height: 270px;
    object-fit: contain;
  }

  .bg_white {
    padding: 20px 10px;
  }

  .timeline-content {
    margin-left: 0;
    margin-top: 0;
  }

  #his_4 {
    width: 70%;
  }

  #his_5 {
    left: 30%;
    top: 43%;
  }

  #his_6 {
    left: 8%;
    top: 53%;
  }

  #his_11 {
    right: 10%;
  }

  #his_12{
    width: 100%;
  }
}

@media screen and (max-width: 480px) {
  .bg_white {
    padding: 20px 5px;
  }

  #his_4{
    width: 100%;
  }
}