.centering_parent {
    padding: 20px;              /* 余白指定 */
    text-align:  center;        /* 中央寄せ */
    background-color:  #ddd;    /* 背景色指定 */
    height: 100px;              /* 高さ指定 */
}

#button1 {
  background-image: url("../../wgo/dog_stanp.png"); /* Replace with your image path */
  background-size: cover; /* Adjust as needed */
  width: 100px; /* Adjust width as needed */
  height: 100px; /* Adjust height as needed */
  border: none; /* Remove button border if needed */
  cursor: pointer; /* Change cursor to pointer on hover */
}