前端代码 控制开关的颜色

以下是一种控制开关颜色的前端代码示例：

HTML：

<div class="toggle-switch">
  <input type="checkbox" class="toggle-switch-checkbox" id="toggle-switch" name="toggle-switch">
  <label class="toggle-switch-label" for="toggle-switch">
    <span class="toggle-switch-inner"></span>
    <span class="toggle-switch-switch"></span>
  </label>
</div>

CSS：

/* 控制开关样式 */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.toggle-switch-checkbox {
  display: none;
}

.toggle-switch-label {
  display: block;
  overflow: hidden;
  cursor: pointer;
  border-radius: 34px;
  margin: 0;
}

.toggle-switch-inner {
  display: block;
  width: 200%;
  margin-left: -100%;
  transition: margin 0.3s ease-in-out, background-color 0.3s ease-in-out;
}

.toggle-switch-inner::before,
.toggle-switch-inner::after {
  display: block;
  float: left;
  width: 50%;
  height: 34px;
  padding: 0;
  line-height: 34px;
  font-size: 14px;
  color: white;
  font-weight: bold;
  box-sizing: border-box;
}

.toggle-switch-inner::before {
  content: "ON";
  padding-left: 10px;
  background-color: #28a745;
}

.toggle-switch-inner::after {
  content: "OFF";
  padding-right: 10px;
  background-color: #dc3545;
}

.toggle-switch-switch {
  display: block;
  width: 18px;
  height: 18px;
  margin: 8px;
  background-color: white;
  position: absolute;
  top: 0;
  bottom: 0;
  right: 36px;
  border-radius: 50%;
  transition: all 0.3s ease-in-out;
}

/* 控制开关颜色 */
.toggle-switch-checkbox:checked + .toggle-switch-label .toggle-switch-inner {
  margin-left: 0;
}

.toggle-switch-checkbox:checked + .toggle-switch-label .toggle-switch-switch {
  right: 0px;
}

.toggle-switch-checkbox:checked + .toggle-switch-label .toggle-switch-inner::before {
  background-color: #dc3545;
}

.toggle-switch-checkbox:checked + .toggle-switch-label .toggle-switch-inner::after {
  background-color: #28a745;
}

JavaScript：

// 无需 JavaScript

这段代码中，我们使用了 HTML 和 CSS 来创建一个控制开关，并使用 JavaScript 来控制开关的状态。在 CSS 中，我们使用了伪元素和过渡效果来创建了一个平滑的开关。同时，我们使用了:checked 伪类来控制开关颜色。当开关被选中时，我们可以使用:checked 伪类和相应的 CSS 属性来改变开关的颜色。