如何让按钮既有波纹又有自定义形状

<button id="custom-button">Click me</button>

#custom-button {
  position: relative;
  border: none;
  padding: 10px 20px;
  background-color: #007bff;
  color: #fff;
  font-size: 16px;
  border-radius: 50px;
  overflow: hidden;
}

#custom-button:before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  background-color: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  opacity: 0;
  transition: width 0.3s, height 0.3s, opacity 0.3s;
}

#custom-button:hover:before {
  width: 200px;
  height: 200px;
  opacity: 1;
}

document.getElementById("custom-button").addEventListener("click", function() {
  // 自定义按钮点击事件的逻辑
});