@media (max-width: 640px) {
  .body .details {
    width: 100%;
    padding-left: 10px;
    padding-right: 10px;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
  }
  .body .details .content h1 {
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    line-height: 36px;
  }
  .body .details .content p {
    line-height: 36px;
    font-size: 16px;
  }
  .body .details .content img {
    width: 100%;
  }
}