body{
  text-align: center;
  background:yellow;
}
.draw{
  margin:10vh auto;
  width:600px;
}
.inner{
  display:flex;
  justify-content:space-around;
  align-items: flex-start;
  margin-bottom:4vh;
  .bin{
    word-wrap: break-word;
    width:140px;
    border:1px solid gray;
    height: 110px;
    line-height: .7em;
    font-size:.98em;
  }
}
.canvas{
  display:flex;
  flex-wrap:wrap;
  width:140px;
  margin:0 auto;
  .square {
    background: #ccc;
    width:10px;
    height:10px;
  }
  .square.active {
    background-color: black;
  }
  &.receive-canvas{
    margin-top:2em;
  }
}
textarea{
  width:100%;
  height:20vh;
}