js 多选框样式

<div class="checkbox-container">
  <input type="checkbox" id="option1" />
  <label for="option1">Option 1</label>
</div>
<div class="checkbox-container">
  <input type="checkbox" id="option2" />
  <label for="option2">Option 2</label>
</div>

.checkbox-container {
  display: flex;
  align-items: center;
}

.checkbox-container input {
  margin-right: 10px;
}

/* 自定义多选框样式 */
.checkbox-container input[type="checkbox"] {
  display: none;
}

.checkbox-container label {
  position: relative;
  padding-left: 30px;
  cursor: pointer;
}

.checkbox-container label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  border: 2px solid #000;
  border-radius: 4px;
}

.checkbox-container input[type="checkbox"]:checked + label::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 8px;
  height: 14px;
  border: solid #000;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

document.querySelectorAll('.checkbox-container input[type="checkbox"]').forEach(checkbox => {
  checkbox.addEventListener('change', function() {
    if (this.checked) {
      console.log(`${this.id} is checked`);
    } else {
      console.log(`${this.id} is unchecked`);
    }
  });
});