@media screen and (min-width: 320px) {
  .customer_case {
    /* padding: 1rem;
    overflow: hidden; */
  }
  .customer_left {
    width: 100%;
    overflow: hidden;
    float: left;
  }
  .customer_left p {
    float: left;
    color: #333;
    font-size: 1.6rem;
    padding: 1rem;
    line-height: 2rem;
    text-align: left;
  }
  .units_info {
    padding: 1rem;
    overflow: hidden;
  }
  .units_info_title {
    text-align: left;
  }
  .units_info_title h1 {
    font-weight: bold;
    color: #444;
    font-size: 2.4rem;
    padding-left: 1rem;
    border-left: 3px solid #2ed99b;
  }
  .units_info_title p {
    color: #999;
    font-size: 2rem;
    padding-top: 1rem;
    letter-spacing: 0.2rem;
  }
  .units_item {
    overflow: hidden;
    border: 1px solid #eee;
    box-shadow: 0 0 0.6rem rgba(0, 0, 0, 0.15);
    margin-top: 1rem;
  }
  .units_item img {
    width: 100%;
    height: 100%;
  }
}
@media screen and (min-width: 1024px) {
  .customer_case {
    padding: 1rem;
    overflow: hidden;
  }
  .customer_left {
    width: 35%;
    overflow: hidden;
    float: left;
  }
  .customer_left p {
    float: left;
    color: #333;
    font-size: 1.6rem;
    padding: 2rem;
    line-height: 2rem;
    text-align: left;
  }
  .units_info {
    padding: 1rem;
    overflow: hidden;
  }
  .units_info_title {
    text-align: left;
  }
  .units_info_title h1 {
    font-weight: bold;
    color: #444;
    font-size: 2.4rem;
    padding-left: 1rem;
    border-left: 3px solid #2ed99b;
  }
  .units_info_title p {
    color: #999;
    font-size: 2rem;
    padding-top: 1rem;
    letter-spacing: 0.2rem;
  }
  .units_item {
    overflow: hidden;
    border: 1px solid #eee;
    box-shadow: 0 0 0.6rem rgba(0, 0, 0, 0.15);
    margin-top: 1rem;
  }
  .units_item img {
    width: 100%;
    height: 100%;
  }
}