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                <button>Open Content</button>
  <p> Lorem ipsum dolor sit amet consectetur adipisicing elit. Eum animi fugit excepturi consectetur cum ex iure natus impedit, ab, accusamus ipsum blanditiis, vitae eaque similique voluptatibus alias quod error recusandae quasi earum ipsam! Expedita obcaecati non libero molestias unde porro eos consectetur ducimus,</p>
  <p>nesciunt maiores perferendis blanditiis quasi excepturi, ex sunt tenetur minima laborum autem laboriosam fugiat possimus officiis architecto corporis dolorem. At laborum voluptate amet eius quaerat. Dolor reiciendis minima non facere molestias enim natus.</p>


                body {
  font-family: 'Source Sans Pro', sans-serif;
  display: flex;
  height: 100vh;
  background: #262626;
  overflow: hidden;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;

div {
  max-width: 520px;
  background: white;
  overflow: hidden;
  height: 0;

p {
  width: 90%;
  margin: 5%;

button {
  padding: 10px;
   font-family: 'Source Sans Pro', sans-serif;
  cursor: pointer;
  margin-bottom: 1rem;



                document.querySelector("button").addEventListener("click", () => {"div", { height: "auto" });