#container {
  width: 980px;
  margin-right: auto;
  margin-left: auto;
}

h1 {
  border-bottom: 1px solid #888;
  font-size: 1.5em;
  padding: 5px 0;
}

.detail-list {
  margin: 20px 0;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: wrap;
}

.detail-list dl {
  margin: 10px 0 0 0;
  width: 50%;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: nowrap;
}

.detail-list dt {
  margin: 0;
  font-size: 0.9em;
  font-weight: bold;
}

.detail-list dd {
  margin: 0 0 0 15px;
  font-size: 0.9em;
}

.list-back-btn {
  text-align: right;
  font-size: 0.95em;
}