.topic {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed #222;
}

.topic:first-child {
  padding-top: 0;
}

.topic:last-child {
  border-bottom: 0;
}

.topic img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  margin-right: 10px;
}

.topic .title {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  font-weight: 500;
  font-size: 18px;
}