@media only screen and (max-width: 500px) {
  .colARetenir {
    width: 44% !important;
  }
  .wrapperARetenir {
    width: 100% !important;
  }
  .front .inner p {
    font-size: 1.8rem !important;
  }
}
* {
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.wrapper {
  width: 100%;
  margin: 0 auto;
  max-width: 80rem;
}
.wrapperARetenir {
  width: 80%;
  max-width: 1200px;
  margin: 0 auto;
}
.cols {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.col {
  width: calc(25% - 2rem);
  margin: 1rem;
  cursor: pointer;
}
.colARetenir {
  width: calc(25% - 2rem);
  margin: 1rem;
  cursor: pointer;
}
.containerCards {
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-perspective: 1000px;
  perspective: 1000px;
}

.containerCardsSommaire {
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-perspective: 1000px;
  perspective: 1000px;
}

.containerCardsNoReverse {
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-perspective: 1000px;
  perspective: 1000px;
  margin-top: -8px;
}

.front,
.back {
  background-size: cover;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.25);
  border-radius: 10px;
  background-position: center;
  -webkit-transition: -webkit-transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transition: -webkit-transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  -o-transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1),
    -webkit-transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  text-align: center;
  min-height: 280px;
  height: auto;
  border-radius: 10px;
  color: #fff;
}

.back {
  background: #cedce7;
  background: -webkit-linear-gradient(45deg, #cedce7 0%, #b3abab 100%);
  background: -o-linear-gradient(45deg, #cedce7 0%, #b3abab 100%);
  background: linear-gradient(45deg, #cedce7 0%, #b3abab 100%);
  text-align: justify;
  color: #303030;
}

@media only screen and (min-width: 501px) {
  .back .inner p {
    font-size: 1.5rem !important;
    font-weight: 500;
  }
}

.front {
  color: black;
}
.front:after {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  content: "";
  display: block;
  opacity: 0.6;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: 10px;
}
.containerCards:hover .front,
.containerCards:hover .back {
  -webkit-transition: -webkit-transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transition: -webkit-transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  -o-transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1),
    -webkit-transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
}

.back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}

.inner {
  -webkit-transform: translateY(-50%) translateZ(60px) scale(0.94);
  transform: translateY(-50%) translateZ(60px) scale(0.94);
  top: 50%;
  position: absolute;
  left: 0;
  width: 100%;
  padding: 1rem;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  outline: 1px solid transparent;
  -webkit-perspective: inherit;
  perspective: inherit;
  z-index: 2;
  font-size: 13px;
}

.containerCards .back {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.containerCards .front {
  -webkit-transform: rotateY(0deg);
  transform: rotateY(0deg);
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.containerCardsSommaire:hover .front {
  transform: scale(1.05);
}

.containerCards:hover .back {
  -webkit-transform: rotateY(0deg);
  transform: rotateY(0deg);
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.containerCards:hover .front {
  -webkit-transform: rotateY(-180deg);
  transform: rotateY(-180deg);
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.front .inner p {
  font-size: 2rem;
  margin-bottom: 2rem;
  position: relative;
}
.back .inner p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  position: relative;
}
.front .inner span {
  color: rgba(255, 255, 255, 0.7);
  font-family: "Montserrat";
  font-weight: 300;
}

.fleche {
  position: absolute;
  bottom: 0;
  display: block;
  left: 0;
  right: 0;
  margin: 0 auto;
}

@media screen and (max-width: 64rem) {
  .col {
    width: calc(33.333333% - 2rem);
  }
}

@media screen and (max-width: 48rem) {
  .col {
    width: calc(50% - 2rem);
  }
}

@media screen and (max-width: 32rem) {
  .col {
    width: 42%;
    margin: 10 0 2rem 0;
  }

  .wrapper {
    width: 100%;
  }
}