header {
  width: auto;
  margin 0: ;
  padding: 45px 0 30px 0;
  background-color: #d7e4f8;
  text-align: center;
  font-family: YuMincho, '游明朝', serif;
}

#header-title {
  margin-top: 30px;
  font-size: 27px;
}

article {
  width: 800px;
  margin: 30px auto 0 auto;
  padding: 0;
  text-align: center;
}

button,
input[type="submit"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding: 0;
  border: none;
  outline: none;
  background: transparent;
}

input[type="text"] {
  padding: 0;
  border: none;
  border-radius: 0;
  outline: none;
  background: none;
}

textarea, input[type=text], select {
  border: solid 1px #aaaaaa;
  background-color: #ffffff;
}

input[type="text"], select {
  font-size: 18px;
  line-height: 1em;
  padding: 0.2em 0.5em;
}

textarea {
  font-size: 18px;
  padding: 0.2em 0.5em;
}

input[type="text"].error,
select.error,
textarea.error {
  background-color: #FFD9DA;
}

a.button,
a.submit-button,
input[type=submit] {
  display: inline-block;
  width: auto;
  padding: 0.7em 3em;
  margin: 0 0.3em;
  text-align: center;
  vertical-align: bottom;
  color: #ffffff;
  background-color: #aaaaaa;
//    background-color: #0083af;
  line-height: 1em;
  font-size: 21px;
  text-decoration: none;
  border-radius: 1.7em;
//  font-family: Meiryo, "游ゴシック体", "Yu Gothic", YuGothic, sans-serif;
}

a.button:hover,
a.submit-button:hover,
input[type=submit]:hover {
  cursor: pointer;
  opacity: 0.7;
}

a.submit-button,
input[type=submit] {
  background-color: #b60015;
}

#form-button {
  margin: 30px 0 0 0;
  text-align: center;
  width: auto;
}