.cardStack
{
  display: table;
  margin: auto;
  border-spacing: 20px;
}

.card
{
  position: relative;
  display: table-cell;
  min-width: 450px;
  width: 450px;
  height: 450px;
  border: 1px solid;
  border-color: #aaa;
  text-align: center;
  vertical-align: middle;
  transition: border-color ease .3s;
  transition: color ease .3s;
}

.card:hover
{
  border-color: #57a3e8;
  color: #57a3e8;
}

.card a
{
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  line-height: 450px;
  font-family: 'Open Sans',sans-serif;
  font-size: 5rem;
  text-indent: -3px;
  letter-spacing: -2px;
}

a
{
  text-decoration: none;
  transition: color ease .3s;
  color: #50585d;
}

a:hover
{
  color: #57a3e8;
}

#title
{
  margin-left: -20px;
}

#title h1
{
  display: table-cell;
  font-size: 3rem;
  line-height: 1.2em;
  text-indent: -3px;
  letter-spacing: -2px;
}

.row
{
  display: table-row;
}