html {
  font-size: 10px;
}
body {
  background: #954;
  color: #353535;
  font-family: 'Fjalla One', sans-serif;
  margin: 0;
  padding: 40px 0 0 40px;
}
.cards {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cards li {
  background: radial-gradient(circle at 50% 30%, #fff 43%, #adadad);
  border-radius: 0.8rem;
  box-shadow: 0 1rem 1rem rgba(0,0,0,0.3);
  display: inline-block;
  line-height: 1.0;
  margin: 0 3em 3em 0;
  padding: 0;
  position: relative;
  width: 18rem;
  height: 26rem;
}
.month {
  display: block;
  font-size: 1.5rem;
  text-align: right;
  text-transform: uppercase;
  position: absolute;
  left: -1.5rem;
  top: 3.6rem;
  -webkit-transform: rotate(-90deg);
  -ms-transform: rotate(-90deg);
  transform: rotate(-90deg);
  width: 6rem;
  height: 1.5rem;
}
.day {
  color: rgba(0,0,0,0.75);
  display: block;
  font-size: 18rem;
  letter-spacing: -2.4rem;
  text-align: right;
  text-shadow: 1px 4px 6px #fff, 0 0 0 #000, 1px 4px 6px #fff;
  position: absolute;
  right: 0;
  top: 0.5rem;
  width: 18rem;
}