.active-search{
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  margin: 0 auto;
  max-width: 1100px !important;
  width: calc(100% - 40px);
  padding: 0;
  font-family: Montserrat, sans-serif;
  background-color: #333;
  border-width:1px !important;
  border-color: rgba(153, 153, 153, 0.564);
  box-sizing: border-box;
  border-style: solid;
  border-width: 1px;
  border-radius: 6px;
  color: #fff;
  font-size: 18px;
  margin-bottom: 0;
  transition: all 0.5s;
  box-shadow: inset 0 0 0 #000;
  height: auto;
  opacity: 0;
}

.active-search.show{
  padding: 15px 20px;
  height: auto;
  opacity: 1;
  margin-bottom: 20px;
}

.active-search:focus{
  box-shadow: inset 0 0 15px #000;
  outline: none;
  background-color: #222;
}

.active-search::placeholder {
  color: #FFF;
  opacity: 1; /* Firefox */
}

.active-search::-ms-input-placeholder { /* Edge 12 -18 */
  color: #fff;
}

li {
  display: block;
  transition: all 0.3s ease;
  opacity: 1;
}

li.hidden {
  display: none;
  height: 0;
  overflow: hidden;
  opacity: 0;
}