body {
  background: #e4b86b;
  font-size: 40px;
  font-family: Verdana, sans-serif;
}

.container {
  width: 400px;
  margin: 10px auto;
  background: rgb(245, 239, 239);
  border-radius: 8px;
  padding: 16px;
  position: relative;
}

#question {
  margin-bottom: 20px;
  font-weight: bold;
  font-size:40ps;
}

#choices {
  list-style: none;
  padding: 0;
  margin-bottom: 50px;
}

#choices > li {
  border: 4px solid #ccc;
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 10px;
  cursor: pointer;
}

#choices > li:hover {
  background: #f6d4d4;
}

#choices > li.correct {
  background: #a3ebb4;
  border-color: #022f0d;
  color: #032c0d;
  font-weight: bold;
}

#choices > li.correct::after {
  content: ' ... 正解';

}
.panel img {
  width:300px;
  margin-bottom:1px;
}

#choices > li.wrong {
  background: #f8d8da;
  border-color: #f5c6cb;
  color: #721c24;
  font-weight: bold;
}

#choices > li.wrong::after {
  content: ' ... 間違い!';
}

#btn, #result > a {
  background: #3498db;
  padding: 4px;
  border-radius: 4px;
  cursor: pointer;
  text-align: center;
  color: #fff;
  box-shadow: 0 8px 0 #0b5485;
}

#btn.disabled {
  background: rgb(245, 190, 190);
  box-shadow: 0 4px 0 rgb(77, 75, 75);
  opacity: 0.4;
}

#result {
  position: absolute;
  width: 500px;
  height:600px;
  background: #cff1d2;
  padding: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  top: 0px;
  left: 0;
  right: 0;
  margin: 0 auto;
  border-radius: 4px;
  text-align: center;
  transition: 1.5s;
}

#result.hidden {
  transform: translateY(-1000px);
}

#result > p {
  font-size: 30px;
}

#result > a {
  display: block;
  text-decoration: none;
}