mempool/frontend/src/app/components/about/about.component.scss

.qr-wrapper {
  background-color: #FFF;
  padding: 10px;
  display: inline-block;
}

.profile_photo {
  width: 80px;
  height: 80px;
  background-size: 100%, 100%;
  border-radius: 50%;
  margin: 10px;
}

.text-small {
  font-size: 12px;
}