* {
  margin:0; padding:0;
}
a:link, a:visited, a:hover, a:active {
  color: #CECECE;
}
h1 {
  font-size : 32px; 
  line-height : 1;    
}
h3 {
  font-size : 18px;
  line-height : 1;    
}
html{
  height: auto;
  min-height: 100%;
}
body {
  height: auto;
	background: linear-gradient(#303030, #030303);
	font-family: "Exo 2", "Noto Sans JP", "google", sans-serif;
	font-size: 100%;
  font-weight: normal;
  font-style: normal;
  text-align: left;
  text-transform: none;
  color: #CECECE;

  user-select:none;
  -webkit-user-select:none;
  -ms-user-select: none;
  -moz-user-select:none;
  -khtml-user-select:none;
  -webkit-user-drag:none;
  -khtml-user-drag:none;

  min-height: 100vh;
  margin-top: -24px;
}
header {
    height: 100px;
    width: 100%;
    padding: 15px 0;
    background-color: #083843;
    color: white;
    position: fixed;
    z-index: 1;
}
header .headline{
    line-height: 100px;
    float: left;
    font-size: 30px;
    margin-left: 100px;
}
img.logo {
  width: 200px;
  height: 66px;
  margin: 15px;
  border:none 2px #FFFFFF;
}
.index-label {
  width: 80%;
  height: 100%;
  -webkit-user-drag: none;
  display: block;
  margin: 0 0 0 auto;
}
.universal-padding {
    padding: 20px;
}
.top-padding-lerge{
  width: 980px;
  height: 150px;
  margin: auto;
}
.top-padding-narrow{
  width: 980px;
  height: 40px;
  margin: auto;
}
.main-contents {
  width: 980px;
  /* min-height: 80vh; */
  margin: auto;
  background: rgb(20, 20, 20);
}
.main-title{
  margin: 0px 20px auto;
}
.main-date{
  margin: 0px 20px auto;
  text-align: right;
}
.main-column{
  margin: 20px auto;
  display: flex;
}
.main-columun1{
  width: 50%;
  margin: 10px 20px auto;
  margin-bottom: 50px;
}
.main-article{
  margin: 10px 20px auto;
  margin-bottom: 50px;
}
.main-columun2{
  width: 50%;
  padding-left: 30px;
  margin-top: 50px;
}
.sub-column1{
  height: 30%;

}
.sub-column2{
  height: 70%;
  width: 90%;
}
.sub-contents{
  display: flex;
  margin-bottom: 50px;
}
.subsub-column1{
  width: 30%;
  margin: 10px 30px auto;
}
.subsub-column2{
  width: 30%;
  margin: 5px 10px auto;
}
.subsub-column3{
  width: 30%;
  margin: 5px 10px auto;
}
.subsubsub-column1{
  margin: 10px 10px auto;
}
.subsubsub-column2{
  margin: 10px 10px auto;
}
.subsubsub-column3{
  margin: 10px 10px auto;
}

.bottom-padding-narrow{
  width: 50%;
  height: 1px;
  margin: 40px;
}

.nav-list {
    line-height: 100px;
    float: right;
    margin-right: 30px;
    list-style: none;
}
.nav-list-item {
  list-style: none;
  display: inline-block;
  color: #E4E4E4;
  margin: 0 20px;
}

footer{
  width: 100%;
  height: 100px;
  background-color: #083843;
  color: white;
  text-align: center;
  margin-top: auto;
  position: absolute;
  bottom: 0;
}

.footerFixed{
  min-height: 100vh; /* ←コンテンツの高さの最小値＝ブラウザの高さに指定 */
  position: relative;/* ←相対位置 */
  padding-bottom: 50px; /* ←フッターの高さを指定 */
  box-sizing: border-box;
  /* ↑ヘッダーやフッターを含むすべての要素の高さ＝min-height:100vhになるように指定 */
}

ul.footer-menu li {
display: inline;
}