body { margin: 0; background:#336699;}
canvas { 
  width: 100%;       height: 100%;
}

#box{width:100px;height:100px;background:#fff;position:absolute;}

div{
  text-align:center;
  font-family: 'Nunito Sans', sans-serif;
  color:#fff;
  font-weight:300;
  font-size:24px;margin:120px;
  opacity:0.4;
}

span{
  font-size:16px;
}