a {
  background-color: transparent;
}

abbr[title] {
  text-decoration: underline dotted;
}

code,
kbd,
samp,
pre {
  font-family: monospace, monospace;
  font-size: 1em;
}

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}