.sr-only {
  position: absolute;
  overflow: hidden;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  border: 0;
  clip: rect(0, 0, 0, 0);
}

section {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  background-color: skyblue;
}

article {
  padding: 30px;
  margin: 10px;
  border: 3px solid paleturquoise;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
  background-color: azure;
}

div {
  margin-bottom: 10px;
  background-color: beige;
}

span {
  background-color: wheat;
}

em {
  background-color: white;
}