#penToolBtn{
  pointer-events: auto;
  position: relative;
  z-index: 1001;
}

#penToolOptions {
  background: rgba(255,255,255,1);
  border-radius: 5px 0 0 5px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
  height: 300px;
  padding: 6px;
  position: fixed;
  right: 0;
  top: 120px;
  visibility: hidden;
  width: 44px;
  z-index: 1001;
}

#penToolOptions .penActive {
  visibility: visible;
  z-index: 1000;
}

.penColourOption {
  border-radius: 20px;
  border: 1px solid #fff;
  height: 32px;
  margin-top: 10px;
  padding: 0;
  width: 32px;
}

#penToolOptions button {
  background-position: center;
  background-size: 100% 100%;
  cursor: pointer;
}

.penColourOption:hover {
  transition: .2s;
  -webkit-transform: scale(1.1);
}

#penBLACK {
  background-color: black;
}

#penRED {
  background-color: red;
}

#penGREEN {
  background-color: green;
}

#penBLUE {
  background-color: blue;
}

/* Canvas */

canvas{
  -webkit-user-select: none;  /* Chrome all / Safari all */
  -moz-user-select: none;     /* Firefox all */
  -ms-user-select: none;      /* IE 10+ */
  user-select: none;
}

#erasing_canvas {
  cursor: url(../images/pen-tool/eraser_cursor.png), auto;
  display: none;
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 998;
}

#drawing_canvas {
  cursor: crosshair;
  left: 0;
  position: absolute;
  top: 0;
  z-index: 999;
}

.no-select {
  -webkit-user-select: none;  /* Chrome all / Safari all */
  -moz-user-select: none;     /* Firefox all */
  -ms-user-select: none;      /* IE 10+ */
  user-select: none;
}