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

canvas {
  display: block;
}

button {
  background-color: #eeeeee; /* Green */
  border: none;
  color: black;
  padding: 15px 32px;
  margin: 50px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  border-radius: 8px;
  font-size: 16px;
  width: 200px;
}

.input_container {
  border: 1px solid #e5e5e5;
}

input[type=file]::file-selector-button {
  background-color: #eeeeee; /* Green */
  border: none;
  color: black;
  padding: 15px 32px;
  margin: 50px 80px 50px 50px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  border-radius: 8px;
  font-size: 16px;
  width: 200px;
}

input[type=file]::file-selector-button:hover {
  background-color: #dddddd; /* Green */
}

button:hover {
  background-color: #dddddd; /* Green */
}