body {
  background-color: white;
  box-sizing: border-box;
  color: #81C199;
  padding-top: 3em;
}

/**
 * @see https://www.paulirish.com/2012/box-sizing-border-box-ftw/
 */
*, *:before, *:after {
  box-sizing: inherit;
}

h1 {
  font-size: 150%;
  font-weight: normal;
  letter-spacing: 0.2em;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  text-transform: uppercase;
}

form {
  margin-left: 1em;
  margin-right: 1em;
}

form button,
form input {
}

form button[type="submit"] {
  background-color: #8bd7a9;
  border-radius: 1em 1em;
  border-style: none;
  color: white; /* user-agent says black */
  display: block;
  font-size: 80%;
  letter-spacing: 0.05em;
  margin: 1.5em 0;
  padding: 0.5em;
  text-transform: uppercase;
  width: 100%;
}

form input[type="text"] {
  border-color: #81C199;
  border-radius: 1em 1em;
  border-style: solid;
  border-width: 1px;
  display: block;
  margin: 1.5em 0;
  padding: 0.5em 0 0.5em 1em;
  width: 100%;
}

li {
  list-style: none;
}