.promo-card {
  
  flex: 1;
  border-radius: 2px;
  border-width: 1px;
  border-style:solid;
  border-color: lightgray;
  background-color: aliceblue;
  padding: 10px;
  position: relative;
}

.promo-card img {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40px;
  height: auto;
}