*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
}

body {
  font-family: helvetica;
}

main {
  display: flex;
  height: 100vh;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.content {
  max-width: 900px;
  > * {
    margin-bottom: 20px;
  }
}

p {
  margin: 8px 0;
}

button {
  border: none;
  background-color: #ccf;
  border-radius: 3px;
  padding: 2px 4px;
}