a {
  color: blue;
  text-decoration: none;
}

body {
  font-family: sans-serif;
}

#board {
  border: 1px solid black;
}

#status, #hinted {
  font-size: 36px;
  font-weight: bolder;
}

#bottom {
  clear: left;
}

.buttons div {
  text-align: center;
  vertical-aylign: middle;
  font-weight: bolder;
  font-size: larger;
  line-height: 50px;
}

.action {
  background-color: lightgreen;
  border: 3px solid black;
  border-radius: 7px;
  padding: 0 5px;
  margin: 5px 0;
  box-shadow: inset -3px -3px 6px rgba(0,0,0,.4);
  width: 72px;
  height: 50px;
  display: inline-block;
  position: static;
}

.pressed {
  box-shadow: inset 3px 3px 6px rgba(0,0,0,.4);
}