mikansc/index.html

## index.html
<!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>Lista de Convidados</title>
  <link rel="stylesheet" href="style.css">
</head>

<body>
  <header class="header">
    <h1>
      Lista de Convidados
    </h1>
  </header>

  <main class="content">
    <div class="card">
      <h2>Camarote</h2>
      <ul class="listaConvidados" id="listaCamarote">

      </ul>
    </div>
    <div class="card">
      <h2>Arquibancada</h2>
      <ul class="listaConvidados" id="listaArquibancada">

      </ul>
    </div>
    <div class="card">
      <h2>Pista</h2>
      <ul class="listaConvidados" id="listaPista">

      </ul>
    </div>
  </main>

</body>

</html>

## style.css
/* RESET DE CSS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

h1,
h2,
h3,
h4,
h5,
h6,
body {
  font-size: 16px;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 300;
}

/* FIM DO RESET */

body {
  background-color: #eee;
}

.header {
  width: 100%;
  height: 80px;
  margin-bottom: 1.5em;

  background-color: #5b6e8a;

  display: flex;
  align-items: center;
  justify-content: center;
}

.header h1 {
  font-size: 1.5rem;
  color: white;
  text-transform: uppercase;
}

.content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  margin: 0 1em;
}

@media screen and (min-width: 720px) {
  .header h1 {
    font-size: 2rem;
    font-weight: 700;
  }

  .content {
    max-width: 80%;
    margin: 0 auto;
    flex-direction: row;
  }
}

.card {
  background-color: white;

  width: 100%;
  height: 400px;
  overflow-y: scroll;
  padding: 1em;

  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 3px 5px rgba(0, 0, 0, 0.1);
}

.card h2 {
  font-size: 1rem;
  text-transform: uppercase;
  margin-bottom: 1em;
}

.card ul {
  list-style: disc inside;
}
	<!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>Lista de Convidados</title>
	<link rel="stylesheet" href="style.css">
	</head>

	<body>
	<header class="header">
	<h1>
	Lista de Convidados
	</h1>
	</header>

	<main class="content">
	<div class="card">
	<h2>Camarote</h2>
	<ul class="listaConvidados" id="listaCamarote">

	</ul>
	</div>
	<div class="card">
	<h2>Arquibancada</h2>
	<ul class="listaConvidados" id="listaArquibancada">

	</ul>
	</div>
	<div class="card">
	<h2>Pista</h2>
	<ul class="listaConvidados" id="listaPista">

	</ul>
	</div>
	</main>

	</body>

	</html>
	/* RESET DE CSS */
	* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	}

	h1,
	h2,
	h3,
	h4,
	h5,
	h6,
	body {
	font-size: 16px;
	font-family: Arial, Helvetica, sans-serif;
	font-weight: 300;
	}

	/* FIM DO RESET */

	body {
	background-color: #eee;
	}

	.header {
	width: 100%;
	height: 80px;
	margin-bottom: 1.5em;

	background-color: #5b6e8a;

	display: flex;
	align-items: center;
	justify-content: center;
	}

	.header h1 {
	font-size: 1.5rem;
	color: white;
	text-transform: uppercase;
	}

	.content {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: 10px;
	margin: 0 1em;
	}

	@media screen and (min-width: 720px) {
	.header h1 {
	font-size: 2rem;
	font-weight: 700;
	}

	.content {
	max-width: 80%;
	margin: 0 auto;
	flex-direction: row;
	}
	}

	.card {
	background-color: white;

	width: 100%;
	height: 400px;
	overflow-y: scroll;
	padding: 1em;

	border: 1px solid rgba(0, 0, 0, 0.1);
	box-shadow: 0 3px 5px rgba(0, 0, 0, 0.1);
	}

	.card h2 {
	font-size: 1rem;
	text-transform: uppercase;
	margin-bottom: 1em;
	}

	.card ul {
	list-style: disc inside;
	}