body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: grey;
  color: white !important;
  font: arial

}
#boink {
  padding: 2cm;
  font-size: 1.5rem;
}
header {
  top: 0;
  left: 0;
}
footer {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 5px;
}
mark {
  background-color: black !important;
  border-radius: 12px;
}
a {
  color: white;
}
p {
  font-size: 25px !important;
  color: white !important;
}
h1 {
  color: white !important;
}