@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');

*, *::before, *::after {
  padding: 0;
  margin: 0 auto;
  box-sizing: border-box;
}

.accordion {
  max-width: 800px;
  text-align: left;
}

article {
  border: 1px solid #AAA;
  padding: 1em;
  margin: 1em auto;
  background-color:#FFF;
}

article label h2 {	margin-bottom:0px!important; font-size:16px!important;	} 

article label {	margin-bottom:0px!important	} 

input[type="radio"] {
  appearance: none;
  position: fixed;
  top: -100vh; left: -100vh;

  & ~ div {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s;
  }

  &:checked ~ div {
    max-height: 200px;
  }
}