html,
body {
  direction: rtl;
  font-family: arial;
  padding: 10px 60px;
}

.container {
  float: right;
  position: relative;
}

.receiver h2,
.sender h3 {
  text-decoration: underline;
}

.details {
  float: right;
  border: 1px dashed #222;
  padding: 20px;
  font-size: 20px;
}

.details td {
  padding: 5px 10px;
}

.sender {
  margin-top: 520px;
  transform: rotate(180deg);
  position: absolute;
  right: 0;
}

.sender .details {
  font-size: 16px;
}