<button class="cp_button02">button</button>

.cp_button02 {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 160px;
  padding: 1em;
  cursor: pointer;
  color: #ec407a;
  background: transparent;
  border: none;
  border-radius: 12% / 50%;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease-in-out;
}
/*hover時の設定*/
.cp_button02:hover {
  color: #ec407a;
  box-shadow: 0 1px 6px 1px rgba(0, 0, 0, 0.2);
  transform: scale(1.02);
}
/*active時の設定*/
.cp_button02:active {
  box-shadow: 0 2px 3px 1px rgba(0, 0, 0, 0.15) inset;
  transition-duration: 0.05s;
  transform: scale(0.99);
}
/*focus時の設定*/
.cp_button02:focus,
.cp_button02:focus:hover {
  color: #ec407a;
}