.has-equal-height {
  height: 100%;
  display: flex;
  flex-direction: column;
}


content figure img {
  filter: drop-shadow(4px 4px 5px grey);
}

a, a:hover {
  color: rgb(74, 74, 74);
}

.card {
  box-shadow: 10px 15px 25px 0 rgba(0,0,0,.2);
}

html, body {
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
}
section {
  flex: 1 0 auto;
}

footer {
    margin-top : 3em;
}