body {
 width: 100%;
 -webkit-text-size-adjust: 100%;
  margin : 0 auto;
  text-align: center;
  background-color: #ffffff;
  font-family: "HG丸ｺﾞｼｯｸM-PRO", "ヒラギノ丸ゴ ProN";
}

#contents{
  margin : 0;
  width : auto;
}

#header{ 
  margin : 0;
  padding:0;
  width : 100%;
}

#menu{
  clear: both;  margin : 0;
  width : auto;
  text-align:center;
}

#menu ul{
list-style: none; 
padding:0;
margin:0;
}
#menu li{
padding: 0 auto; 
margin: 0 auto;
float: left;
}
#menu li a{
display: block;
width: auto;
border-bottom: 1px dotted #555;
text-decoration: none;
color: #555;
padding: 0;
margin: 0;
text-align: center;
font-size: 100%;
}
#menu li a:hover{
}

#main{
  clear: both;
  margin : 0;
  width : 95%;
  text-align: center;
  border : outset ;
  background-image:
   radial-gradient(800px 800px, rgba(255,255,217, 0.5) 20%, transparent 20%),
   radial-gradient(500px 500px, rgba(255,255,217, 0.5) 20%, transparent 20%),
   radial-gradient(300px 300px, rgba(255,255,217, 0.5) 20%, transparent 20%),
   radial-gradient(1000px 1000px, rgba(200,250,255, 0.5) 20%, transparent 20%),
   radial-gradient(700px 700px, rgba(200,250,255, 0.5) 20%, transparent 20%),
   radial-gradient(300px 300px, rgba(200,250,255, 0.5) 20%, transparent 20%);
  background-size:
   1000px 1280px,
   810px 910px,
   1470px 990px,
   1200px 1700px,
   700px 700px,
   400px 400px;
  background-position;
   -300px -550px,
   -200px 100px,
   50px 510px,
   -200px -550px,
   -180px -250px,
   130px -150px;
}

#left{
  width : 95%;
  text-align: center;
  line-height: 2em
}

#right{
  width : 95%;
  text-align: left;
}

}#footer{
  clear: both;
  margin : 0;
  text-align: left;
}

.c1 {
  color: #000000; 
  font : 1em;
}
/*黒文字、小さめ、行間広*/

.c2 {
  color: #000000; 
  font : 1.2em;
}
/*黒文字、標準*/

.c3{
  color : #ff0000; 
  font: bold 1.5em;
}
/*赤文字、強調*/

.c4{
  color: #000000; 
  font : 1em;
}
/*黒文字、小さめ*/

.c5{
  color : #ff0000; 
  font: bold 1.5em;
}

.t1{
  color: #000000; 
  font : bold 1em;
  text-align: center;
  table-layout: fixed;
  border: 1px dotted green;
  width: 90%;
}

.menu-btn {
    position: fixed;
    top: 10px;
    right: 10px;
    display: flex;
    height: 60px;
    width: 60px;
    justify-content: center;
    align-items: center;
    z-index: 90;
    background-color: #3584bb;
}
.menu-btn span,
.menu-btn span:before,
.menu-btn span:after {
    content: '';
    display: block;
    height: 3px;
    width: 25px;
    border-radius: 3px;
    background-color: #ffffff;
    position: absolute;
}
.menu-btn span:before {
    bottom: 8px;
}
.menu-btn span:after {
    top: 8px;
}

#menu-btn-check:checked ~ .menu-btn span {
    background-color: rgba(255, 255, 255, 0);/*メニューオープン時は真ん中の線を透明にする*/
}
#menu-btn-check:checked ~ .menu-btn span::before {
    bottom: 0;
    transform: rotate(45deg);
}
#menu-btn-check:checked ~ .menu-btn span::after {
    top: 0;
    transform: rotate(-45deg);
}

#menu-btn-check {
    display: none;
}

 
.menu-content {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 100%;
    z-index: 80;
    background-color: #3584bb;
    transition: all 0.5s;
}
.menu-content ul {
    padding: 70px 10px 0;
}
.menu-content ul li {
    border-bottom: solid 1px #ffffff;
    list-style: none;
}
.menu-content ul li a {
    display: block;
    width: 100%;
    font-size: 15px;
    box-sizing: border-box;
    color:#ffffff;
    text-decoration: none;
    padding: 9px 15px 10px 0;
    position: relative;
}
.menu-content ul li a::before {
    content: "";
    width: 7px;
    height: 7px;
    border-top: solid 2px #ffffff;
    border-right: solid 2px #ffffff;
    transform: rotate(45deg);
    position: absolute;
    right: 11px;
    top: 16px;
}

#menu-btn-check:checked ~ .menu-content {
    left: 0;/*



img{
 max-width:100%;
 height: auto;
}