html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}
#wrapper {
  width: 900px;
  margin: 0 auto;
}
header {
  background-color: #FFF;
  width: 100%;
  padding-top: 50px;
  padding-bottom: 10px;
}
#container {
  width: 100%;
  display: flex;
}
#sidecontents {
  background-color: #FFF;
  width: 220px;
}
#maincontents {
  width: 640px;
  padding-left: 40px;
}
footer {
  background-color: #fff;
  font-size: 13px;
  text-align: center;
  color: #333;
  border-top: solid 1px #006699;
  padding: 15px 0 30px 0;
}
article {
  padding-bottom: 30px;
}
section {
  padding-bottom: 30px;
}
/* common */
h1 {
  font-size: 28px;
  font-weight: bold;
}
h2 {
  font-size: 24px;
  font-weight: bold;
}
h3 {
  font-size: 16px;
  font-weight: bold;
}
h4 {
  font-size: 14px;
  font-weight: bold;
}
h5 {
  font-size: 1.3em;
  font-weight: bold;
  color: #333333;
  margin-bottom: 0.5em;
  padding-bottom: 0.3em;
  border-bottom: 1px dotted #666666;
}
a {
  color: #333;
  text-decoration: none;
}
a:link {
  color: #333;
  text-decoration: none;
}
a:hover {
  color: #f30;
  text-decoration: none;
}
a:visited {
  color: #333;
  text-decoration: none;
}
.smo80 {
  font-size: 80%;
}
.bold {
  font-weight: bold;
}
.tab20 {
  margin-left: 20px;
}
.tab50 {
  margin-left: 50px;
}
.tab60 {
  margin-left: 60px;
}
.tab80 {
  margin-left: 80px;
}
/* header部 */
.headerlogo-a {
  display: inline-block;
  height: 68px;
}
.headerlogo-title {
  display: inline-block;
  margin-left: 10px;
  height: 68px;
}
.headerlogo-b {
  display: inline-block;
}
.headerlogo-c {
  display: inline-block;
}
.headerlogo-migi {
  display: inline-block;
  float: right;
}
/* ナビバー */
#navibar {
  color: white;
  margin-bottom: 30px;
}
ul.navibar {
  list-style-type: none;
  display: flex;
  background-color: #006699;
  height: 38px;
  margin: 0;
  padding: 0;
}
ul.navibar li {}
ul.navibar li a {
  color: #ffffff;
  line-height: 37px;
  display: block;
  padding: 1px 15px 0 15px;
  text-decoration: none;
}
ul.navibar li a:hover {
  background-color: #1591CE;
}
li.current-page {
  background-color: #1591CE;
}
/* サイドコンテンツ */
ul.saidenavi {
  width: 218px;
  padding-bottom: 30px;
}
ul.saidenavi li {
  margin: 0 0 10px 0;
  display: block;
  width: 218px;
  padding: 1em 0;
  text-align: center;
  text-decoration: none;
  color: #535353;
  border: 1px solid #cccccc;
  border-radius: 8px;
  background-color: #EEEEEE;
  font-size: 14px;
  font-weight: bold;
}
.sidetextarea {
  background-color: #FFF;
  width: 220px;
  padding-bottom: 20px;
}
.sideimgarea {
  background-color: #FFF;
  width: 220px;
}
.side-banner {
  width: 220px;
  text-align: center;
  padding-bottom: 8px;
}
.side-banner img {
  max-width: 150px;
}
/* メインコンテンツ */
#maincontents img {
  max-width: 640px;
}
.modoru {
  text-align: center;
}
.box2column {
  display: flex;
  flex-wrap: wrap;
}
.box2column-content {
  width: calc(50% - 20px);
  text-align: center;
  padding: 10px;
  margin-bottom: 20px;
}
.box2column-content img {
  max-width: 280px;
}
/* 追加CSS */
h6 {
  font-size: 1.1em;
  font-weight: bold;
  color: #333333;
  margin-bottom: 1.2em;
}
h6 a:link {
  text-decoration: underline;
}
h6 a:hover {
  color: #999999;
  text-decoration: underline;
}