body{
    overflow: hidden;
    margin: 0;
    width: 100vw;
    height: 100vh;
    background-color: "#222";
}

#defaultCanvas0
{
 position: absolute;
 top:50%;
 left:50%;
 transform: translate(-50%,-50%);
 box-shadow: 2px 2px 20px #000;
  
    
}