.header,
.footer {
  display: flex;
}

.header:empty,
.content:empty {
  display: none;
}

.show-more {
  color: #999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875em;
  height: 52rpx;
}

.show-more:active {
  background-color: #f5f5f5;
}