footer {
  background: #f6f6f6;
  padding: 30px;
  color: #999999;
}
footer h3 a {
  color: inherit;
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}
.footer-copyright {
  border-top: 1px solid #dadada;
}
.footer-copyright img {
  mix-blend-mode: multiply;
  filter: grayscale(100%);
}
.footer-copyright a.social {
  margin-right: 30px;
  font-size: 30px;
}
.footer-copyright article {
  display: flex;
  align-items: center;
}
.footer-copyright article .footer-logo {
  margin-right: 30px;
}
@media screen and (max-width: 768px) {
  .footer-copyright {
    font-size: 12px;
  }
  .footer-copyright img {
    height: 30px;
  }
  .footer-copyright a.social {
    margin-right: 15px;
    font-size: 20px;
  }
  .footer-copyright article .footer-logo {
    margin-right: 15px;
  }
  .footer-copyright article {
    flex-grow: 1;
  }
  .footer-copyright .copyright {
    font-size: 9px;
  }
  .footer-copyright .copyright > span {
    display: block;
  }
}