.pro_sub ul.fl li i:before, .pro_sub ul.fl li i:after {
  transition: all 0.25s ease-in-out;
}

.pro_sub ul.fl li {
  animation: flipdown 0.5s ease both;
}

.pro_sub ul.fl {
  list-style: none;
  perspective: 900;
  padding: 0;
  margin: 0;
}
.pro_sub ul.fl li {
  position: relative;
  padding: 0;
  margin: 0;
  padding-bottom: 4px;
  padding-top: 18px;
  border-top: 1px dotted #dce7eb;
  width:260px;
  padding-left:5px;
  padding-right:5px
}
.pro_sub ul.fl li:nth-of-type(1) {
  animation-delay: 0.5s;
}
.pro_sub ul.fl li:nth-of-type(2) {
  animation-delay: 0.75s;
}
.pro_sub ul.fl li:nth-of-type(3) {
  animation-delay: 1s;
}
.pro_sub ul.fl li:last-of-type {
  padding-bottom: 0;
}
.pro_sub ul.fl li i {
  position: absolute;
  transform: translate(-6px, 0);
  margin-top: 16px;
  right: 0;
}
.pro_sub ul.fl li i:before, ul li i:after {
  content: "";
  position: absolute;
  background-color: #1568bf;
  width: 3px;
  height: 9px;
}
.pro_sub ul.fl li i:before {
  transform: translate(-2px, 0) rotate(45deg);
}
.pro_sub ul.fl li i:after {
  transform: translate(2px, 0) rotate(-45deg);
}
.pro_sub ul.fl li input[type=checkbox] {
  position: absolute;
  cursor: pointer;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0;
}
.pro_sub ul.fl li input[type=checkbox]:checked ~ p {
  margin-top: 0;
  max-height: 0;
  opacity: 0;
  transform: translate(0, 50%);
}
.pro_sub ul.fl li input[type=checkbox]:checked ~ i:before {
  transform: translate(2px, 0) rotate(45deg);
}
.pro_sub ul.fl li input[type=checkbox]:checked ~ i:after {
  transform: translate(-2px, 0) rotate(-45deg);
}

.pro_sub h1 {
  text-transform: uppercase;
  font-size: 36px;
  line-height: 42px;
  letter-spacing: 3px;
  font-weight: 100;
}

.pro_sub h2 {
  font-size: 22px;
  line-height: 34px;
  font-weight: 300;
  letter-spacing: 1px;
  display: block;
  background-color: #fefffa;
  margin: 0;
  cursor: pointer;
}

.pro_sub p {
  color: rgba(48, 69, 92, 0.8);
  font-size: 17px;
  line-height: 26px;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
  max-height: 800px;
  opacity: 1;
  transform: translate(0, 0);
  margin-top: 14px;
  z-index: 2;
  padding-left:15px;
}