* {
  box-sizing: border-box;
}

html,
body {
  font-family: sans-serif;
  margin: auto;
  height: 100%;
  font-family: Roboto, sans-serif;
}

body {
  padding: 10px;
}

h1 {
  margin-top: 0;
}

.icon {
  border: 1px dashed;
  width: 24px;
  height: 24px;
  display: inline-block;
}

.icon svg {
  width: 20px;
  height: 20px;
}

.iframes {
  height: 100vh;
  padding: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(1, 1fr);
}

@media only screen and (min-width: 768px) {
  .iframes {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media only screen and (min-width: 1280px) {
  .iframes {
    grid-template-columns: repeat(3, 1fr);
  }
}

.iframe-wrapper {
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.iframe {
  flex-grow: 1;
  border: 1px solid;
}

.link {
  padding: 10px 10px 20px;
  color: navy;
}