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

body {
  background-color: #f9f9fa;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
}

.container {
  width: 60%;
  margin: 0 auto;
}

header {
  text-align: center;
  color: #333;
  padding: 20px 0;
}

header h1 {
  text-transform: uppercase;
}

section {
  margin: 20px;
  padding: 20px;
  background-color: #fff;
  border: 1px solid #ddd;
}

h2 {
  text-transform: uppercase;
  margin-bottom: 10px;
}

h3 {
  text-transform: uppercase;
}

ul {
  list-style-type: disc;
  margin-left: 20px;
}

.box {
  margin-top: 40px;
  margin-bottom: 40px;
}

footer {
  text-align: center;
  background-color: #333;
  color: #fff;
  padding: 10px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

footer p {
  width: 50%;
}

@media screen and (max-width: 990px) {
  .container {
    width: 95%;
  }

  header {
    && h1 {
      font-size: 18px;
    }
  }
}