.wrapper {
    position: relative;
    width: 400px;
    height: 200px;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
  }
  img {
    position: absolute;
    left: 0;
    top: 0;
  }
  
  .m-signature-pad {
    position: relative;
    left: 0;
    top: 0;
    width: 100%;
    height: 250px;
    border: 1px solid #CCCCCC;
  }

  .m-signature-pad--body canvas {
    position: relative;
    left: 0;
    top: 0;
    width: 100%;
    height: 250px;
    border: 1px solid #CCCCCC;
}