html {
  height: 100%;
}

body {
  height: 100%;
  font-family: 游ゴシック体, 'Yu Gothic', YuGothic, メイリオ, 'Hiragino Kaku Gothic ProN', sans-serif;
  color: #000;
}

a {
  text-decoration: none;
  color: inherit;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 760px;
  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;
}
.form10{
       border-bottom: ridge; 
}
#header {
	/*background: #f2f2f2;*/
}
#header .header_body {
	padding: 2rem;
}
#header .header_body h1,#header .header_body span.h1 {
    text-align: center;
}
#header .header_body span.h1 {
    display: block;
}
#header .header_body h1 img,#header .header_body span.h1 img {
    max-width: 100%;
	height: auto;
}
footer {
	text-align: center;
    background: #174f00;
	color: #fff;
	padding: 1rem;
	font-size: 80%;
	margin: 3rem 0 0;
}
@media screen and (max-width:768px) {
	.container {
        width: calc(100% - 2rem);
        margin: 20px auto;
        padding: 1rem;
        overflow: hidden;
    }
}