* {
  margin: 0;
  padding: 0;
  list-style: none;
  box-sizing: border-box;
}
body {
  font-size: 16px;
  margin: 0 auto;
  max-width: 750px;
  /* background: #cccccc; */
}
html,
body {
  height: 100%;
}
ul {
  width: 100%;
  height: 100%;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

ul li {
  color: #333333;
}

ul li span {
  display: block;
  line-height: 1.5em;
  padding: 20px 10px;
  font-size: 1.5em;
  font-weight: 600;
  color: #333333;
  /* background: #cccccc; */
  border-bottom: 1px solid #ddd;
  /* background: linear-gradient(#943b63, #d65091, #943b63); */
  display: flex;
  /* align-items: center; */
}

dl {
  height: 0;
  overflow: hidden;
  background: #ffffff;
  transition: height 0.3s;
}
dl dd {
  padding: 20px;
}
.triangle-down {
  margin-top: 15px;
  margin-right: 5px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-top: 8px solid #333;
}
.triangle-right {
  margin-top: 10px;
  /* margin-right: 5px; */
  width: 0;
  height: 0;
  border-left: 8px solid #333;
  border-right: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-top: 8px solid transparent;
}