body {
  background-color: #f9f9f9;
  color: #222;
  font-family: "Heebo";
  font-size: 16px;
  padding: 70px 15px;
}
@media (max-width: 768px) {
  body {
    font-size: 13px;
    padding: 20px 15px;
  }
}

h1 {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
}

p {
  font-size: 1.1em;
}
@media (max-width: 768px) {
  p {
    font-size: 1.25em;
  }
}

div.banner {
  width: 1000px;
  max-width: 100%;
  background-color: #fff7f8;
  color: #a52834;
  font-weight: 500;
  text-align: center;
  border-radius: 4px;
  box-shadow: 0px 1px 4px rgba(17, 17, 26, 0.05), 0px 0px 8px rgba(17, 17, 26, 0.1);
  margin: 0 auto 20px;
  padding: 15px 20px;
  box-sizing: border-box;
}
@media (max-width: 768px) {
  div.banner {
    font-size: 1.25em;
  }
}

main {
  width: 1000px;
  max-width: 100%;
  margin: 0 auto 20px;
}

div.box {
  background-color: #fff;
  border-radius: 4px 4px 0 0;
  box-shadow: 0px 1px 4px rgba(17, 17, 26, 0.05), 0px 0px 8px rgba(17, 17, 26, 0.1);
  text-align: center;
  box-sizing: border-box;
  padding: 25px 35px;
}
@media (max-width: 768px) {
  div.box {
    padding: 15px 30px 20px;
  }
}

form input[type=text] {
  font-size: 1.2em;
  appearance: 0;
  outline: 0;
  border: 1px solid #b3b3b3;
  border-radius: 0;
  padding: 5px 10px;
}

form button {
  font-family: "Heebo";
  font-size: 1.1em;
  font-weight: bold;
  background-color: #1966FF;
  color: #fff;
  appearance: none;
  outline: 0;
  border: 0;
  border-radius: 4px;
  padding: 15px 30px;
  margin: 10px 0 0;
  cursor: pointer;
  box-shadow: 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
  transition: background-color 0.1s ease;
}

form button:hover {
  background-color: #1955ce;
}

form button[type=submit] {
  background-color: #a52834;
}

form button[type=submit]:hover {
  background-color: #88232d;
}