div {
  border: 7px solid #006437;
 
  padding: 15px;
  margin-bottom: 20px;
}

s1{
  color: #bfff00;
 

 }


a {
  text-decoration: none;
}

.no-dot {
  list-style: none;
}



body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
}

h1 {

  color: #006450;
  border-bottom: 3px solid #006437;
  display: inline-block;

}


h2 {

  color: #bfff00;
  border-bottom: 3px solid #bfff00;
  display: inline-block;

}

 h3 {
   color: #006450;
  border-bottom: 3px solid #006437;
 }

 li {
  transition: all 0.3s ease;
  cursor: pointer;
}
li:hover {
  padding-left: 15px;
  color: #ff9d00;
  font-weight: bold;
}