canvas { border: 1px solid black;}


button{
  background-color: #606060;
  color: white;
  border:none;
  padding:5px 10px 5px 10px ;
  font-size:17px;
  border-radius:4px;	
  margin-right:35px;
}

button:hover {
  background-color: #4CAF50; /* Green */
  color: white;
}