h1 a,
h2 a,
h3 a,
h4 a,
h5 a,
h6 a {
  background: none
}

html {
  font-size: 16px;
}

h1 a,
h2 a,
h3 a,
h4 a,
h5 a,
h6 a {
  background: none
}

Fix breakpoints with smaller font size
Fix breakpoints with smaller font size

rem in media queries is based on the initial 16px font size, and calc()
isn't widely enough supported in media queries to be usable.
