meetup-fe/pages/messages/messages.wxss

.messages {
  padding: 60rpx 20rpx;
}

.messages .item {
  display: flex;
  flex-direction: column;
  margin-bottom: 60rpx;
  padding: 20rpx 35rpx;
  border: 1rpx solid #ddd;
  border-radius: 10rpx;
  background-color: #fff;
}

.messages .item:last-child {
  margin-bottom: 0;
}

.messages .item .title {
  font-size: 40rpx;
  color: #222;
}

.messages .item .date {
  margin-bottom: 10rpx;
  border-bottom: 1rpx solid #eee;
  font-size: 26rpx;
  color: #888;
}

.messages .item image {
  width: 100%;
  height: 300rpx;
  margin: 10rpx 0;
}

.messages .item .summary {
  margin-bottom: 10rpx;
  padding-bottom: 10rpx;
  border-bottom: 1rpx solid #eee;
  font-size: 28rpx;
  color: #444;
}

.messages .item .expand {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #333;
  font-size: 30rpx;
}

.messages .item .expand::after {
  content: '';
  display: inline-block;
  margin-right: 10rpx;
  height: 10rpx;
  width: 10rpx;
  border: 0 solid #ccc;
  border-width: 3rpx 3rpx 0 0;
  transform: matrix(1, 1, -1, 1, 0, 0);
}