img {
  height: auto;
  max-width: 100%;
  vertical-align: middle;
}

.img2 {
  height: auto;
  max-width: 100%;
  vertical-align: middle;
}
.btn {
  background-color: black;
  border: 1px solid #cccccc;
  color: #696969;
  padding: 0.5rem;
  text-transform: lowercase;
}
.btn--block {
  display: block;
  width: 100%;
}
.cards {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}
.cards__item {
  display: flex;
  padding: 1rem;
}
@media (min-width: 40rem) {
  .cards__item {
    width: 50%;
  }
}
@media (min-width: 56rem) {
  .cards__item {
    width: 33.3333%;
  }
}
.card {
  background-color: white;
  border-radius: 0.25rem;
  box-shadow: 0 20px 40px -14px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.card:hover .card__image {
  filter: contrast(100%);
}
.card__content {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  padding: 1rem;
}
.card__image {
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  border-top-left-radius: 0.25rem;
  border-top-right-radius: 0.25rem;
  filter: contrast(70%);
  overflow: hidden;
  position: relative;
  transition: filter 0.5s cubic-bezier(0.43, 0.41, 0.22, 0.91);
}
.card__image::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}
@media (min-width: 40rem) {
  .card__image::before {
    padding-top: 66.6%;
  }
}
.card__image--flowers {
  background-image: url(https://www.afresneda.com/afsisa/img/bot2.jpg);
}
.card__image--river {
  background-image: url(https://www.afresneda.com/afsisa/img/bot2.jpg);
}
.card__image--record {
  background-image: url(https://www.afresneda.com/afsisa/img/bot1.jpg);
}
.card__image--fence {
  background-image: url(https://www.afresneda.com/afsisa/img/bot1.jpg);
}

.card__image--dax {
  background-image: url(https://www.afresneda.com/afsisa/img/dax1.jpg);
}
.card__image--nasdaq {
  background-image: url(https://www.afresneda.com/afsisa/img/nasdaq.jpg);
}
.card__image--dow {
  background-image: url(https://www.afresneda.com/afsisa/img/dow.jpg);
}

.card__image--11 {
  background-image: url(https://www.afresneda.com/afsisa/img/11.jpg);
}

.card__title {
  color: #696969;
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-align: center;
}
.card__text {
  flex: 1 1 auto;
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 1.25rem;
  text-align: center;
}

.mar{
margin: 2.5em;

}

.mar1{
margin: 4.5em;

}

.mar2{
width: auto;
margin-left: 33.33%;


}

.cent{
  text-align: center;
  width: auto;
}
.cent1{
  text-align: center;
  width: auto;
  margin-left: 10em;
}
.cent2{
  margin-left: 17em;
  margin-bottom: 1.25rem;
  border-radius: 0.25rem;
  box-shadow: 0 20px 40px -14px rgba(0, 0, 0, 0.25);
  max-width: 50%;
}