.wrapper {
  width: 740px;
  margin: 0 auto;
  padding-top: 50px;
}
section {
  margin: 100px 0 0 0;
}
.intro {
  margin-bottom: 150px;
}
.intro .graph {
  display: block;
  width: 90%;
  height: auto;
  margin: 60px auto 30px auto;
}
.timepart {
  width: 600px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}
.timeline {
  margin: 30px 0;
}
.timeline.first {
  margin-top: 80px;
}
.time {
  display: inline;
  background-color: #c8b0cf;
  color: #200c31;
  padding: 0 10px;
}
.timeline .title {
  color: #200c31;
  font-weight: bold;
  font-size: 1.5rem;
  line-height: 2rem;
  margin: 10px 0 20px 0;
}
.arrow {
  height: 100px;
  width: auto;
}
.arrowplus {
  height: 150px;
  width: auto;
}
.arrowline {
  fill: none;
  stroke: #000;
  stroke-miterlimit: 10;
}
.articlepart {
  margin-top: 150px;
}
.article {
  margin-bottom: 100px;
}
.article.first {
  margin-top: 50px;
}
.plus {
  position: absolute;
  display: flex;
  align-items: center;
  width: 50%;
  transform: translate(300px, -120px);
  line-height: 1.5rem;
}
.content {
  border: 1px solid #c8b0cf;
  padding: 10px 20px;
}
.line {
  flex: 1;
  background-color: #c8b0cf;
  height: 1px;
}
.seperator {
  width: 100%;
  background-color: #c8b0cf;
  height: 1px;
}

@media screen and (max-width: 639px) {
  .wrapper {
    padding-top: 0px;
  }
  .wrapper,
  .timepart {
    width: 95%;
  }
  .intro .graph {
    width: 100%;
  }
  .plus {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    transform: translate(0, -120px);
    text-align: center;
  }
  .content {
    background-color: #fff;
  }
  .line {
    display: none;
  }
  .articlepart h3 {
    text-align: left;
  }
}