style.css

body {
  background-image: url("5432299.jpg") no-repeat;
  -webkit-background-size: cover;
  background-size: cover;
  font-size: 18px;
  width: 100%;
  height:100%;
}

p {
  line-height: 1.5;
}
a:link { text-decoration: none; }
a:visited { text-decoration: none; }
a:hover { text-decoration: none; }
a:active { text-decoration: none; }

.container {
  max-width: 800px;
  margin: 0 auto;
}


.card-column {
  width: 50%;
  float: left;
  padding: 4%;
  box-sizing: border-box;
}

.column-1 {
  padding-top: 100px;
}

.card {
  width: 92%;
  max-width: 340px;
  margin-left: auto;
  margin-right: auto;
  margin-top:100px;
  position: relative;
  background: black;
  color: white;
  cursor: pointer;
  margin-bottom: 60px;
}

.border {
  position: absolute;
  width: 100%;
  height: 100%;
  padding: 6px;
  border: 1px solid #fff;
  opacity: 0.5;
  left: -6px;
  top: -6px;
}

.card h1 {
  position: relative;
  padding: 190px 0px 100px 10px;
  width: 90%;
}

.card > img {
  width: 90%;
  position: absolute;
  top: -6%;
  left: -6%;
}

.card-color-0 {
  background: linear-gradient(to bottom right,#3bd9f5,rgb(224, 97, 250) );}

.card-color-1 {
  background: linear-gradient(to bottom right,#3bd9f5,rgb(224, 97, 250) );}

.card-color-2 {
  background: linear-gradient(to bottom right,#3bd9f5,rgb(224, 97, 250) );}

.card-color-3 {
  background: linear-gradient(to bottom right,#3bd9f5,rgb(224, 97, 250) );}


.cover {
  position: fixed;
  background: #EB5160;
  z-index: 100;
  transform-origin: 50% 50%;
}


.open-content {
  width: 100%;
  z-index: 110;
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.open-content img {
  position: relative;
  width: 90%;
  margin-left: 3%;
  margin-top: 20px;
  z-index: 5;
}

.open-content .text {
  background: #fff;
  margin-top: -56%;
  padding: 60% 5% 5% 5%;
  width: 80%;
  margin-left: 5%;
  margin-bottom: 5%;
}

.open-content .text h1, .open-content .text p {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.close-content {
  display: block;
  position: absolute;
  right: 12px;
  top: 12px;
  width: 30px;
  height: 30px;
}

.close-content span {
  background: black;
  width: 30px;
  height: 6px;
  display: block;
  position: absolute;
  top: 14px;
}

.x-1 {
  transform: rotate(45deg);
}

.x-2 {
  transform: rotate(-45deg);
}


.card {
  transition: opacity 200ms linear 320ms, transform 200ms ease-out 320ms;
}

.border {
  transition: opacity 200ms linear, transform 200ms ease-out;
}

.card img {
  transition: opacity 200ms linear 0ms, transform 200ms ease-in 0ms;
}

.card h1 {
  transform: translate3d(20%, 0px, 0px);  
  transition: opacity 200ms linear 120ms, transform 200ms ease-in 120ms;
}


.card.clicked img {
  transform: translate3d(0px, -40px, 0px);
  opacity: 0;
}

.card.clicked .border {
  opacity: 0;
  transform: scale(1.3);
}

.card.out, .card.out img {
  transform: translate3d(0px, -40px, 0px);
  opacity: 0;
}

.card.out h1, .card.clicked h1 {
  transform: translate3d(20%, -40px, 0px);
  opacity: 0;
}

.cover {
  transition: transform 300ms ease-in-out;
}

.open-content {
  transition: opacity 200ms linear 0ms;
}

.open-content.open {
  opacity: 1;
  pointer-events: all;
  transition-delay: 1000ms;
}


@media screen and (max-width: 600px) {
  .card-column {
    width: 90%;

  }
  
  .column-1 {
    padding-top: 0px;
  }
  
  .open-content img {
    margin-top: 40px;
  }
}