body {
  background-color: #F9F5FC;
}
canvas {
  border: 1px solid #888;
}

.container {
  background-color: #F1EEFA;
  border: 0.5em solid #AAF;
  box-shadow: 0.25em 0.25em 0.25em #444;
  margin: 0 auto;
  padding: 2em;
  text-align: center;
  width: 30em;
}

body {
  background-color: #F9F5FC;
}

.container {
  background-color: #F1EEFA;
  border: 0.5em solid #AAF;
  box-shadow: 0.25em 0.25em 0.25em #444;
  margin: 0 auto;
  padding: 2em;
  text-align: center;
  width: 30em;
}

#tetris-grid {
  border: 1px solid #779;
}
#tetris-preview {
  border: 4px double #977;
}
Add rules for tetris- ids
Add rules for tetris- ids
