body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    user-select: none;
    touch-action: manipulation;
  }

  
  canvas {
    position: absolute;
    top: 1;
    left: 0;
    width: 100%;
    height: calc(100%)-82; 
  }


  /* DEBUG */

  /*#drawingCanvas {
    background-color: red;
    visibility: hidden; 

  }*//*
  #imageCanvas{
    background-color:  blue;
  }*/