app.css

@import "defaults.css";

body {
  background: #111;
  padding: 5px;
  max-width: 480px;
}

.screen {
  height: 100px;
  width: 290px;
  background: #93ed7b;
  margin-bottom: 8px;
  padding: 10px;
  size: 2em;
  box-shadow: inset -1px -1px 7px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
}

.screen .stack {
  position: absolute;
  bottom: 12px;
  right: 12px;
}

.screen .stack .row {
  display: block;
  text-align: right;
  font-size: 1.5em;
}

.screen .messages {
  align: center;
  position: absolute;
  bottom: 0;
}

.buttons {
  width: 100%;
  display: -moz-box;
  -moz-box-orient: vertical;
}

.buttons .row {
  display: -moz-box;
  width: 100%;
}

.buttons button {
  display: -moz-flex;
  -moz-box-flex: 1;
  min-height: 50px;
  margin: 5px;

  font-size: 1em;
  font-weight: bold;
  border-radius: 10px;
  color: #fff;
  background: #333;
  border-width: 1px 2px 2px 1px;
  border-style: solid;
  border-color: #555 #222 #222 #555;
}

.buttons button.wide {
  display: -moz-flex;
  -moz-box-flex: 2;
}

.buttons button:last-child {
  margin-right: 0;
}