.sps-block-button .sps-block-button-element—small {
  background-color: pink;
  border-radius: 50px;
  border: 2px solid black;
  width:75%;
}

.sps-block-button .sps-block-button-element—small:hover {
  border: 2px solid black;
  background-color: white;
  color: black;
}