.buttonContainer .buttonText,
.buttonText {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: 700;
  pointer-events: none;
}

.toggleButton {
  position: absolute;
  bottom: 0rem;
  left: -0rem;
  width: 4.1rem;
  height: 1.2rem;
  cursor: pointer;
  background-color: transparent;
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  z-index: 3;
  animation: toggleBlink 6s infinite;
}

#toggleButton {
  position: absolute;
  bottom: 1.6rem;
  left: 3rem;
  width: 3.9rem;
  height: 1.3rem;
  cursor: pointer;
  background-color: transparent;
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  z-index: 3;
}

/* 定義閃爍動畫 */
@keyframes toggleBlink {
  0% {
    opacity: 0;
  }
  1% {
    opacity: 1;
  }
  33% {
    opacity: 1;
  }
  34% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

.buttonContainer button {
  position: relative;
  width: 200px;
  height: 100px;
  background: url('https://grupookok.com/css01/logo/kaishi.png') center/cover no-repeat;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.buttonContainer .buttonText {
  animation: 1s linear infinite blink;
}

@keyframes blink {
  0%,
  100% {
    color: #fff;
  }
  50% {
    color: #00f;
  }
}

.buttonText {
  animation: 1s infinite blink;
}