.page-title{
    background-image: linear-gradient( rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5) ), url("/images/background.jpg");
    width: 100%;
    height: 20%;
}

.page-title-heading h2{
    padding-left: 20px;
    margin-bottom: 12px;
    color: #d5d5d5;
}

.page-title-heading h2:before{
    display: block;
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 5px;
    background-color: dodgerblue;
}

.container-fluid .container-card{
    position: relative;
}

.front,
.back {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.container {
  -webkit-perspective: 1200px;
  perspective: 1200px;
}

.card{
  transition: all 0.5s ease-out;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.back {
  -ms-transform: rotateY(180deg);
  transform: rotateY(180deg);
}

.flipped {
  -ms-transform: rotateY(-180deg);
  transform: rotateY(-180deg);
}

.r_wrap {
  position: relative;
  bottom: 38px;
}

.b_round,
.s_round {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: #212529;
  transition: all 0.2s linear;
}

.b_round {
  bottom: -53px;
  opacity: 0;
  background-color: #212529;
}

.b_round_hover {
  transform: scale(1.5);
  opacity: 0.4;
}

.b_round_back_hover {
  background-color: #212529;
}

.s_round_click {
  transform: scale(1.7);
}

.s_round_back {
  background-color: #212529;
}

.s_arrow {
  width: 52px;
  height: 52px;
  background-image: url('https://img-fotki.yandex.ru/get/194549/29644339.5/0_d6c60_1d7815f0_orig');
  background-color: transparent;
  transition: all 0.35s linear;
}

.s_arrow_rotate {
  transform: rotate(-180deg);
}

.scrollable{
    height: 70%;
    overflow-y: auto
}

.port{
    width: 100%;
    height: 100%;
}

.bg-color{
    background-color: #F3F3F3;
}

.card:hover{
    transition: all 0.2s ease-out;
    box-shadow: 0 4px 8px rgba(38, 38, 38, 0.2);
    top: -6px;
}