body {
  display: block;
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  overflow-x: hidden;
}

header {
  display: block;
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  background: #fff;
  margin: 0 auto;
  padding: 1rem 0;
}

header img {
  display: block;
  position: relative;
  width: 100%;
  max-width: 155px;
  margin: 0 auto;
  padding: 0;
}

main {
  display: block;
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 2rem 1rem 4rem 1rem;
  background-color: #fff;
}

main h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 2.5rem;
  color: #2f2f2f;
  margin: 0 auto 1.5rem auto;
}

main h2 {
  font-size: 1.75rem;
  font-weight: 400;
  line-height: 1.75rem;
  color: #3f3f3f;
  margin: 0 auto 1.5rem auto;
}

main button {
  display: block;
  position: relative;
  margin: 0 auto;
  padding: .75rem 1.95rem;
  background-color: #28a745;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 600;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
}

main button:focus,
main button:hover {
  background-color: #207d36;
}

footer {
  display: block;
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  padding: .25rem 1rem;
  background-color: #333;
  color: #fff;
}

footer p {
  font-size: 1rem;
  font-weight: 400;
  margin: .5rem auto;
  padding: 0;
}

footer a {
  color: #efefef;
}

footer a:focus,
footer a:hover {
  text-decoration: none;
}

.container {
  display: block;
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 960px;
  height: auto;
  margin: 0 auto;
  padding: 1rem;
}

.text-centered {
  text-align: center;
}

@media only screen and (max-width: 767px) {
  header {
    padding: .25rem 1rem;
  }

  main {
    padding: 0 1rem 1rem 1rem;
  }

  main h1 {
    font-size: 2rem;
  }

  main h2 {
    font-size: 1.65rem;
  }
}