角度动画开关2不同大小的div

<div class="switch">
  <input type="checkbox" id="toggle">
  <label for="toggle"></label>
</div>

<div class="div1"></div>
<div class="div2"></div>

.switch {
  position: relative;
  width: 60px;
  height: 30px;
}

.switch input[type="checkbox"] {
  display: none;
}

.switch label {
  position: absolute;
  top: 0;
  left: 0;
  width: 60px;
  height: 30px;
  background-color: #ccc;
  border-radius: 15px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.switch label:before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 26px;
  height: 26px;
  background-color: #fff;
  border-radius: 50%;
  transition: transform 0.3s;
}

.switch input[type="checkbox"]:checked + label {
  background-color: #66bb6a;
}

.switch input[type="checkbox"]:checked + label:before {
  transform: translateX(30px);
}

.div1 {
  width: 100px;
  height: 100px;
  background-color: #f44336;
  transition: opacity 0.3s;
}

.div2 {
  width: 200px;
  height: 200px;
  background-color: #2196f3;
  transition: opacity 0.3s;
  opacity: 0;
}

.switch input[type="checkbox"]:checked ~ .div1 {
  opacity: 0;
}

.switch input[type="checkbox"]:checked ~ .div2 {
  opacity: 1;
}

const toggle = document.getElementById('toggle');

toggle.addEventListener('change', function() {
  const div1 = document.querySelector('.div1');
  const div2 = document.querySelector('.div2');
  
  if (this.checked) {
    div1.style.display = 'none';
    div2.style.display = 'block';
  } else {
    div1.style.display = 'block';
    div2.style.display = 'none';
  }
});