body {
  font-family: Arial, Helvetica, sans-serif;
}

img {
  display: block;

  /* This rule is very important, please don't ignore this */
  max-width: 100%;
}

.btn {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
}

.center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

#uploadControl {
  text-align: center;
}

#fileInput {
  display: block;
  margin: auto;
}

#btnCrop {
  margin: auto;
}

#cropControl {
  display: none;
  margin-top: 20px;
  text-align: center;
}

#canvas {
  height: 600px;
  width: 600px;
  background-color: #ffffff;
  cursor: default;
  border: 0;
}