Спойлер в IPS Community Suite 4

<div><input type="checkbox" id="spoiler2" />
<label for="spoiler2">Spoiler</label>
<div class="spoiler">{option}</div>
<style>
input[id^="spoiler"] {
  display: none;
}

input[id^="spoiler"] + label {
  display: block;
  width: 200px;
  margin:  auto;
  padding: 5px 20px;
  background: #607D8B;
  color: #fff;
  text-align: center;
  font-size: 24px;
  border-radius: 2px;
  cursor: pointer;
  transition: all .6s;
}

input[id^="spoiler"]:checked + label {
  color: #333;
  background: #ccc;
}

input[id^="spoiler"] ~ .spoiler {
  width: 90%;
  height: ;
  overflow: hidden;
  opacity: ;
  margin: 10px auto ;
  padding: 10px;
  background: #eee;
  border: 1px solid #ccc;
  border-radius: 2px;
  transition: all .6s;
}

input[id^="spoiler"]:checked + label + .spoiler {
  height: auto;
  opacity: 1;
  padding: 10px;
}
</style></div>