h2 {
  margin: 20px auto 80px;
  font-size: 38px;
  font-weight: 400;
  text-align: center;
  letter-spacing: 2px;
  line-height: 1.5;
}

details {
  width: 100%;
  min-height: 5px;
  max-width: 700px;
  padding: 10px 30px 0px 30px;
  margin: 0 auto;
  position: relative;
  font-size: 14px;
  border: 1px solid rgba(0,0,0,.1);
  border-radius: 5px;
  box-sizing: border-box;
  -webkit-transition: all .3s;
  transition: all .3s;
  margin-bottom: 15px;
  background-color: #f9f9f9;
}

details + details {
  margin-top: 20px;
}

details[open] {
  min-height: 50px;
  background-color: #fff;
  box-shadow: 2px 2px 20px rgba(0,0,0,.2);
}

details p {
  color: #96999d;
  font-weight: 300;
}

summary {
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
          align-items: center;
  font-weight: 500;
  cursor: pointer;
  font-size: 16px;
  padding-bottom: 15px;
}

summary:focus {
  outline: none;
  
}

summary:focus::after {
  content: "";
  height: 100%;
  width: 100%;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
}

summary::-webkit-details-marker {
  display: none;
}

.control-icon {
  fill: rebeccapurple;
  -webkit-transition: .3s ease;
  transition: .3s ease;
  pointer-events: none;
}

.control-icon-close {
  display: none;
}

details[open] .control-icon-close {
  display: initial;
  -webkit-transition: .3s ease;
  transition: .3s ease;
}

details[open] .control-icon-expand {
  display: none;
}