body{
  margin:0;
  background:#ccc;
  font-size:0;
}

.wrapper{
  background:white;
  width:1024px;
  margin:0 auto;
}

#iframe-head, #iframe-foot{
  border:none;
  margin: auto;
  display: block;
}

.to-top{
  position: fixed;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
  margin-left: 905px;
  bottom: 20px;
  font-size: 40px;
  font-weight: bold;
  line-height:26px;
  text-align:center;
  padding:25px 10px 0 10px;
  color: #fff;
  background: #000;
  cursor: pointer;
  opacity:0.8;
}

.to-top:hover{
  opacity:0.5;
}

.top-p{
  font-size: 14px;
  font-weight: bold;
}

.top-wrapper{
  height:80px;
}

.container{
  width: 1024px;
  padding: 0;
  margin: 0 auto;
}

.choice h1{
  position: relative;
  padding: 5px;
  border-left: 10px solid #778899;
  font-size:40px;
  margin:10px 0 20px 20px;
  border-bottom: 5px solid #7ed1e;
}

.choice h1:before {
  position: absolute;
  left: -10px;
  bottom: 0;
  content: '';
  width: 10px;
  height: 50%;
  background-color: rgb(110,0,110);
}

.choice h1:after {
  position: absolute;
  left: 0;
  bottom: 0;
  content: '';
  width: 90%;
  height: 0;
  border-bottom: 3px solid #778899;
}


.exp-wrapper{
  background:white;
  height:100px;
}

.level-wrapper{
  height:6900px;
}

p{
  font-size:16px;
  margin:0px 0px 2px 40px;
}

.caption-red{
  color:red;
}

.tab-group{
  width:945px;
  display: flex;
  justify-content: center;
}

.tab-group li{
  font-size:35px;
  color:black;
  height:45px;
}

.tab-group img{
  width:143px;
  padding:9px 0 0px 0px;
}

.tab{
  flex-grow: 1;
  list-style:none;
  text-align:center;
  cursor:pointer;
}

.t-levelreha{
  background:rgb(227,244,249);
  height:27px;
  border-top-right-radius :20px;
  border-top-left-radius :5px;
  border:solid 4px rgb(26,100,121);
  border-bottom:none;
}

.t-level1{
  background:rgb(235,248,239);
  height:27px;
  border-top-right-radius :20px;
  border-top-left-radius :5px;
  border:solid 4px rgb(34,177,76);
  border-bottom:none;
}

.t-level2{
  background:rgb(237,249,200);
  height:27px;
  border-top-right-radius :20px;
  border-top-left-radius :5px;
  border:solid 4px rgb(181,230,29);
  border-bottom:none;
}

.t-level3{
  background:rgb(254,251,230);
  height:27px;
  border-top-right-radius :20px;
  border-top-left-radius :5px;
  border:solid 4px rgb(248,218,21);
  border-bottom:none;
}

.t-level4{
  background:rgb(255,255,203);
  height:27px;
  border-top-right-radius :20px;
  border-top-left-radius :5px;
  border:solid 4px rgb(255,127,39);
  border-bottom:none;
}

.t-level5{
  background:rgb(248,233,235);
  height:27px;
  border-top-right-radius :20px;
  border-top-left-radius :5px;
  border:solid 4px rgb(237,28,36);
  border-bottom:none;
}

.panel-group{
  height:300px;
  width:945px;
  border-bottom:solid 3px #CCC;
  border-top:none;
  margin:0 40px;
}

.panel{
  display:none;
  font-size:20px;
  color:black;
  padding:10px 0 0 0;
}

.tab.is-active{
  color:darkblue;
  transition: all 0.2s ease-out;
}

.panel.is-show{
  display:block;
}

.levelreha{
  background:rgb(227,244,249);
  height:6800px;
  border-radius :0 0 8px 8px;
  border:solid 4px rgb(26,100,121);
  border-top:solid 2px rgb(26,100,121);
}

.level1{
  background:rgb(235,248,239);
  height:5550px;
  border-radius :0 0 8px 8px;
  border:solid 4px rgb(34,177,76);
  border-top:solid 2px rgb(34,177,76);
}

.level2{
  background:rgb(237,249,200);
  height:6800px;
  border-radius :0 0 8px 8px;
  border:solid 4px rgb(181,230,29);
  border-top:solid 2px rgb(181,230,29);
}

.level3{
  background:rgb(254,251,230);
  height:6450px;
  border-radius :0 0 8px 8px;
  border:solid 4px rgb(248,218,21);
  border-top:solid 2px rgb(248,218,21);
}

.level4{
  background:rgb(255,255,203);
  height:4150px;
  border-radius :0 0 8px 8px;
  border:solid 4px rgb(255,127,39);
  border-top:solid 2px rgb(255,127,39);
}

.level5{
  background:rgb(248,233,235);
  height:700px;
  border-radius :0 0 8px 8px;
  border:solid 4px rgb(237,28,36);
  border-top:solid 2px rgb(237,28,36);
}

.flex-box {
  display: flex;
}

.ex-item  img{
  width:140px;
  height:140px;
  border:2px black solid;
}

.ex-item, .ex-red, .ex-blue, .ex-lblue{
  margin:42px 20px;
}

.ex-red  img{
  width:140px;
  height:140px;
  border:2px red solid;
}

.ex-blue  img{
  width:140px;
  height:140px;
  border:2px #2B60DE solid;
}

.ex-lblue  img{
  width:140px;
  height:140px;
  border:2px rgb(0,168,168) solid;
}

.ex-item a, .ex-red a, .ex-blue a, .ex-lblue a{
  display:block;
  color:black;
  font-size:20px;
  font-weight:bold;
  text-align:center;
  padding:0 0 2px 0;
  text-decoration:none;
}

.ex-left{
  display:flex;
  align-items:top;
  margin:0 85px 20px 20px;
}

.ex-item img:hover{
  opacity:0.7;
}

.ex-red img:hover{
  opacity:0.7;
}

.ex-blue img:hover{
  opacity:0.7;
}

.ex-lblue img:hover{
  opacity:0.7;
}

#free{
  width:100px;
  height:70px;
  position:absolute;
  z-index:2;
  margin:-15px 0 0 -15px;
  border:none;
  display:none;
}

#free:hover{
  opacity:0.2;
}


.small-18{
  font-size:18px;
  font-weight:bold;
}

.small-17{
  font-size:17px;
  font-weight:bold;
}

.small-16{
  font-size:16px;
  font-weight:bold;
}

.small-15{
  font-size:15px;
  font-weight:bold;
}

.small-14{
  font-size:14px;
  font-weight:bold;
}

.small-13{
  font-size:13px;
  font-weight:bold;
}

.small-12{
  font-size:12px;
  font-weight:bold;
}

.up{
  margin-top:500px;
  margin-left:130px;
}

.up p{
  font-size:37px;
  font-weight:bold;
  color:#008080;
}

.up:hover{
  opacity:0.5;
}


#data{
  width:85px;
  height:43px;
  position:absolute;
  z-index:2;
  margin:-42px 0 0 -3px;
  border:none;
  opacity:0.9;
}

.data-ex{
  position:absolute;
  margin:45px 0 0 80px;
  opacity:0.9;
}

.data-ex p{
  position:relative;
  font-size:20px;
  margin:-33px 0 0 82px;
}

.data-ex2{
  position:absolute;
  margin:90px 0 0 80px;
  opacity:0.9;
}

.data-ex2 p{
  position:relative;
  font-size:20px;
  margin:-33px 0 0 82px;
}

.bottom-wrapper{
  height;100px;
}

.btn-back{
  padding:8px 15px;
  margin:5px 0 10px 350px;
  background:#000055;
  color:white;
  display:inline-block;
  opacity:0.8;
  border-radius:4px;
}

.btn-choice a{
  font-size:30px;
  color:white;
  text-decoration:none;
}