html,
body {
  margin: 0;
  padding: 0;

  
}

body
{

  background:black;

}
canvas {
  display: block;
}

.fullP5 {
      position: absolute;
      top: -45px;   /* push 20px above the window */
      left: 0;
      width: 100%;
      height: calc(100% + 45px); /* extend height to cover window despite offset */
      background: lightblue;
    }

.full {
      position: absolute;
      top: 0px;   /* push 20px above the window */
      left: 0;
      width: 100%;
      height: calc(100% ); /* extend height to cover window despite offset */
      background: lightblue;
    }


html,
body {
  height: 100%;
  overflow: hidden;
}