body {
  font-family: serif;
  font-size: 12pt;
  color: black;
  background: white;
}

header, nav, footer, video {
  display: none;
}

img {
  max-width: 50%;
  height: auto;
}

#video-section, #hasznos-forrasok {
  display: none;
}

a {
  text-decoration: none;
  color: black;
}

details {
  display: block;
}

details[open] > summary {
  display: none;
}

button {
  display: none !important;
}