.container {
  width: 600px;
  margin: 20px auto;
  padding: 30px;
  overflow: hidden;
}

.container span,
.container p,
.container div {
  line-height: 1.6;
}

h1 {
  margin-bottom: 30px;
  font-size: 20px;
  font-weight: normal;
  position: relative;
  text-align: center;
}

h1 span {
  position: relative;
  z-index: 2;
  display: inline-block;
  margin: 0 4em;
  padding: 0 1em;
  background-color: #fff;
  text-align: left;
}

h1::before {
  position: absolute;
  top: 50%;
  z-index: 1;
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: #ccc;
  background: -webkit-linear-gradient(-45deg, transparent, #ccc 10%, #ccc 90%, transparent);
  background: linear-gradient(-45deg, transparent, #ccc 10%, #ccc 90%, transparent);
}

.submit_area {
  margin-top: 45px;
  text-align: center;
}

input[type="submit"][value="送信"] {
  font-family: inherit;
  padding: 10px 30px;
  font-size: 16px;
  background: none;
  border-radius: 8px;
  border: none;
  background: #5d3fff;
  color: #fff;
  cursor: pointer;
}

input[type="button"][value="戻る"] {
  font-family: inherit;
  margin-left: 15px;
  padding: 10px 30px;
  font-size: 16px;
  background: none;
  border-radius: 8px;
  border: 1px solid #5d3fff;
  color: #5d3fff;
  display: inline-block;
  cursor: pointer;
}

input[type="submit"][value="送信"]:hover,
input[type="button"][value="戻る"]:hover {
  opacity: .8;
}

input[type="button"][value="戻る"].single {
  margin-left: 0;
}

.confirmation {
  margin-bottom: 40px;
}

.submit_content dl {
  padding: 12px;
  margin-bottom: 4px;
  border-radius: 4px;
  border-bottom: 1px solid #f9f9f9;
}

.submit_content dt {
  width: 200px;
  display: table-cell;
  vertical-align: middle;
}

.submit_content dd {
  width: 368px;
  padding-left: 8px;
  display: table-cell;
  vertical-align: middle;
}

.err {
  color: red;
}

.completion {
  margin-bottom: 50px;
  text-align: center;
}


@media (max-width: 765px) {
	.container {
		width: 94%;
		margin: 20px auto;
		padding: 30px 0;
	}
	
	.submit_content dl {
		width: 100%;
		padding: 12px 0;
		display: table;
	}
	
	.submit_content dt {
		width: 25%;
		font-size: 0.8rem;
		color: #666;
	}

	.submit_content dd {
		width: 75%;
		padding-left: 5%;
		font-size: 0.9rem;
	}
}