body{
    width: 900px;;
    margin-left: auto;
    margin-right: auto;
}
#hdr {
    background-color: #FFF;
    padding: 19px 0 26px;
    top: 0;
    left: 0;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
    width: 100%;
    z-index: 200;
}
#titel_1 {
    text-align: center;
    font-size:  30px;
    font-weight: bold;
    color: #0033FF;
    font-family: sans-serif;
    padding-top: 30px;
    padding-bottom: 5px;
    line-height: 100%;
}
#titel_2 {
   text-align: center;
   font-size:  25px;
   font-weight: bold;
   color: #333333;
   font-family: sans-serif;
   padding-top: 10px;
   padding-bottom: 10px;
   line-height: 120%;
}
#box1 {
  text-align: center;
  width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 30px;
  margin-bottom: 30px;
  padding-bottom: 20px;
  background: #FFF;
  border: solid 3px #6091d3;/*線*/
  border-radius: 10px;/*角の丸み*/
  text-align: center;
}
#text1{
  font-size:  17px;
  font-weight: bold;
  color: #6091d3;/*文字色*/
  padding-bottom: 20px;
  padding-top: 20px;
}
#text2{
  font-size:  17px;
  color: #333333;/*文字色*/
}
.btn{
  border: 1px solid #000000;
  border-radius: 5px;
  background-color: #eeeeee;
  text-align: center;
  font-size:  16px;
  width: 100px;
  cursor: pointer;
}
@keyframes blinkCycle {
  0%   { opacity: 1; }
  96% { opacity: 1; }  /* 10秒時点（10 / 10.5 ≒ 95.24%） */
  97% { opacity: 0; } 
  99% { opacity: 1; } 
  100%  { opacity: 0; }   /* 残り0.5秒は非表示 */
}
#ad{
  text-align: center;
  width: 850px;
  margin-left: 25px;
  height: 140px;
  background-color:#FF9A57;  
  border-radius:10px;
  box-shadow: -4px -4px 6px  gray inset;
  animation: blinkCycle 10s infinite;
}
#ad:hover {
  background-color: #76FD53;
}


.ad_text1{
  font-size:  38px;
  font-weight: bold;
  color: #ffffff;/*文字色*/
}
.ad_text2{
  font-size:  20px;
  color: #ffffff;/*文字色*/
}
table{
   margin-left: auto;
   margin-right: auto;
   text-align: center;
   width: 900px;
}
#item_td{
   border: solid 1px black;
   text-align: center;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
}
#item01{
   border: solid 1px black;
   text-align: center;
   background-color: #ce779a;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
   color: white;
}
#item02{
   border: solid 1px black;
   text-align: center;
   background-color: #017ba4;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
   color: white;
}
#item03{
   border: solid 1px black;
   text-align: center;
   background-color: #01a33c;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
   color: white;
}
#item04{
   border: solid 1px black;
   text-align: center;
   background-color: #c74a8e;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
   color: white;
}
#item05{
   border: solid 1px black;
   text-align: center;
   background-color: #0f2b72;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
   color: white;
}
#item06{
   border: solid 1px black;
   text-align: center;
   background-color: #142b1b;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
   color: white;
}
#item07{
   border: solid 1px black;
   text-align: center;
   background-color: #7A8AB2;
   padding-left: 10px;
   padding-right: 10px;
   font-size:  15px;
   font-family: Arial, Helvetica, sans-serif;
   color: white;
}
#overlay {
   position: fixed;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   background-color: rgba(0, 0, 0, 0.5); /* 半透明の黒 */
   display: flex;
   justify-content: center;
   align-items: center;
   z-index: 1000; /* 前面に表示 */
}