<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Accordion</title>
</head>

<body>
  <div id="wrapper">
    <h1 id="title">Accordion</h1>
    <details>
      <summary>Open me to read more</summary>
      <p>Lorem Ipsum is a text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.</p>
    </details>
  </div>
</body>

</html>
@import url("https://fonts.googleapis.com/css2?family=Montserrat&display=swap");

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  background-image: linear-gradient(
    to right,
    #f78ca0 0%,
    #f9748f 19%,
    #fd868c 60%,
    #fe9a8b 100%
  );
  background-attachment: fixed;
  height: 100vh;
  display: grid;
  justify-content: center;
  align-content: center;
  grid-template-columns: minmax(150px, 440px);
  font-family: "Montserrat", sans-serif;
}

#wrapper {
  padding: 20px;
  height: 200px;
}

#title {
  margin-bottom: 20px;
  text-align: center;
}

details {
  background-color: white;
  padding: 15px;
  border-radius: 5px;
}

p {
  margin-top: 15px;
  margin-left: 18px;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.