html {
  line-height: 1.5;
}
body{
  font-family: Arial, sans-serif;
  font-size: .9rem;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
}
button, input[type="submit"] {
  cursor: pointer;
  background-color: #007bff;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 5px;
}
.main{
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 2rem;
}
.main__content {
  width: 100%;
  max-width: 50rem;
}
.navigation{
  margin: 1rem 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
}