input[type=text] {
    padding: 12px 20px;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}
button{
  background-color: #4CAF50;
    border: none;
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    margin: 4px 2px;
    cursor: pointer;
}
canvas{
  /*prevent interaction with the canvas*/
  pointer-events:none;
}