.section:has(iframe[src*="https://www.google.com/maps/"]) {
  position: relative;
  display: block;
}
.section:has(iframe[src*="https://www.google.com/maps/"]):before {
  content: "";
  display: block;
  padding-bottom: 35%;
}
.section:has(iframe[src*="https://www.google.com/maps/"]) iframe {
  display: block;
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
}