html {
  height: 100%;
}
body {
  height: 100%;
}
main {
  height: 100%;
}

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

.container {
  max-width: 650px;
}
.button-large,
button.button-large,
input[type="button"].button-large,
input[type="reset"].button-large,
input[type="submit"].button-large {
  font-size: 1.4rem;
  height: 4.5rem;
  line-height: 4.5rem;
  padding: 0 2rem;
}

.button-block {
  width: 100%;
}

#form-result {
  position: fixed;
  bottom: 25px;
  left: 25px;
  right: 25px;
  text-align: center;
}

::placeholder {
  /* Chrome, Firefox, Opera, Safari 10.1+ */
  color: #ccc !important;
  opacity: 1; /* Firefox */
}

:-ms-input-placeholder {
  /* Internet Explorer 10-11 */
  color: #ccc !important;
}

::-ms-input-placeholder {
  /* Microsoft Edge */
  color: #ccc !important;
}