html { font-size: 4vw; }

  h3,h4 {
    border-style: solid;
    border-color: red;
    border-width: 0px;
    margin: 0px;
  }
  
  a {
    text-decoration: none;
    color: #ffffff;
  }

@media screen and (min-width: 50em) {
  html {
    font-size: 4vw;
  }
  h3 {
    font-size: 6vw;
  }
  h4 {
    font-size: 3.25vw;
  }
}
@media screen and (min-width: 75em) {
  html {
    font-size: 1.5em;
  }
  h3 {
    font-size: 2em;
  }
  h4 {
    font-size: 1.1em;
  }
}