CSS使用toggle控件的方法

本篇文章为大家展示了CSS使用toggle控件的方法，代码简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。

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Toggle 控件用于在屏幕上绘制一个开关，通过控制开关的开启与闭合来执行一些具体的操作当用户切换开关状态时，Toggle 控件的绘制函数就会根据不同的切换动作来返回相应的布尔值。选中 Toggle 控件会返回布尔值 true，取消选中就会返回布尔值 false。

效果预览

CSS使用toggle控件的方法

源代码地址

https://github.com/shanyuhai123/learnCSS/tree/master/0159-halloween-switcher

代码解读

定义容器 halloween-switcher , 通过 checkbox 来实现切换

引入字体, 居中显示:

@import url('https://fonts.googleapis.com/css?family=Kodchasan');

* {
  font-family: 'Kodchasan';
}

html {
  font-size: 20px;
}

body {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #081219;
  overflow: hidden;
}

设置实际容器 label 大小

.halloween-label {
  width: 30rem;
  height: 10rem;
  border: 3px solid #E56D48;
  border-radius: 10rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  position: relative;
}

增加两种容器的配色

html {
  --pumpkin-color: #E56D48;
  --vampire-color: #4D7C99;
}

定义 pumpkin-container , vampire-container 容器及文字

.halloween-input ~ .halloween-label::before,
.halloween-input:checked ~ .halloween-label::before {
  position: absolute;
  font-size: 2.5rem;
  text-transform: uppercase;
}
.halloween-input ~ .halloween-label::before {
  content: 'Pumpkin';
  color: var(--pumpkin-color);
  left: 70%;
  transform: translateX(-70%);
}
.halloween-input:checked ~ .halloween-label::before {
  content: 'Vampire';
  color: var(--vampire-color);
  left: 25%;
  transform: translateX(-25%);
}

.halloween-input ~ .halloween-label .pumpkin-container,
.halloween-input ~ .halloween-label .vampire-container {
  width: 9.5rem;
  height: 9.5rem;
  border-radius: 50%;
  position: absolute;
  left: 0.25rem;
  overflow: hidden;
}
.halloween-input ~ .halloween-label .pumpkin-container {
  background-color: var(--pumpkin-color);
  filter: opacity(1);
}
.halloween-input ~ .halloween-label .vampire-container {
  background-color: var(--vampire-color);
  filter: opacity(0);
}
.halloween-input:checked ~ .halloween-label .pumpkin-container {
  left: calc(100% - 0.25rem);
  transform: translateX(-100%);
  filter: opacity(0);
}
.halloween-input:checked ~ .halloween-label .vampire-container {
  left: calc(100% - 0.25rem);
  transform: translateX(-100%);
  filter: opacity(1);
}

增加 label容器颜色渐变

.halloween-label {
  border: 3px solid var(--label-border-color);
  transition: .5s ease-in-out;
}
.halloween-label {
  --label-border-color: var(--pumpkin-color);
}
.halloween-input:checked ~ .halloween-label {
  --label-border-color: var(--vampire-color);
}

pumpkin-container , vampire-container 容器及文字

动画效果

.halloween-input ~ .halloween-label::before,
.halloween-input:checked ~ .halloween-label::before {
  transition: .5s ease;
}
.halloween-input ~ .halloween-label .pumpkin-container,
.halloween-input ~ .halloween-label .vampire-container {
  transition: .5s ease;
}

先绘画 pumpkin , 补全 pumpkin-container

新增果肉颜色

html {
  --pumkin-pulp-color: #330A0F;
}

绘画 pumpkin 的 pumpkin__eyes-n-nose

伪元素画出眼睛

.pumpkin__eyes-n-nose {
  position: absolute;
  top: 20%;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 0.8rem 1.6rem 0.8rem;
  color: var(--pumpkin-color);
  border-bottom-color: var(--pumkin-pulp-color);
  background-color: var(--pumkin-pulp-color);
}
.pumpkin__eyes-n-nose::before,
.pumpkin__eyes-n-nose::after {
  content: '';
  position: absolute;
  width: 1rem;
  height: 1rem;
  background-color: var(--pumkin-pulp-color);
  border-radius: 50%;
  top: 0.5rem;
  left: 0;
}
.pumpkin__eyes-n-nose::before {
  margin-left: -3.25rem;
}
.pumpkin__eyes-n-nose::after {
  margin-left: 2.25rem;
}

绘画 pumpkin 的 pumpkin__mouth-n-teeths

伪元素画出牙齿

.pumpkin__mouth-n-teeths {
  position: absolute;
  width: 6.5rem;
  height: 3.25rem;
  bottom: 10%;
  background-color: var(--pumkin-pulp-color);
  border-radius: 0 0 6.5rem 6.5rem;
}
.pumpkin__mouth-n-teeths::before,
.pumpkin__mouth-n-teeths::after {
  content: '';
  position: absolute;
  height: 0.75rem;
  width: 1rem;
  background-color: var(--pumpkin-color);
}
.pumpkin__mouth-n-teeths::before {
  top: 0;
  left: 1.25rem;
}
.pumpkin__mouth-n-teeths::after {
  height: 1rem;
  bottom: 0;
  right: 1.25rem;
}

再绘画 vampire , 补全 vampire-container

利用伪元素绘出 vampire-container 的脸

.vampire-container::before,
.vampire-container::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: #c2def2;  /* face color */
  border-radius: 45% 45% 0 0;
  top: 0.75rem;
}
.vampire-container::before {
  left: -4rem;
}
.vampire-container::after {
  right: -4rem;
}

伪元素绘出 vampire__eyes

.vampire__eyes {
  top: 20%;
  position: absolute;
  z-index: 1;
}
.vampire__eyes::before,
.vampire__eyes::after {
  content: '';
  position: absolute;
  width: 1rem;
  height: 1rem;
  background-color: #d63e49; /* eye-color */
  border-radius: 50%;
  top: 0.5rem;
  left: 0;
}
.vampire__eyes::before {
  margin-left: -3.25rem;
}
.vampire__eyes::after {
  margin-left: 2.25rem;
}

绘出 vampire__mouth

.vampire__mouth {
  position: absolute;
  width: 6.5rem;
  height: 3.25rem;
  background-color: var(--pumkin-pulp-color);
  bottom: 10%;
  border-radius: 0 0 6.5rem 6.5rem;
  display: flex;
  justify-content: center;
  overflow: hidden;
  z-index: 1;
}

绘出 vampire__teeths 门牙, 伪元素绘出牙齿

.vampire__teeths {
  position: absolute;
  width: 100%;
  height: 1rem;
  background-color: #fffae6;
  top: -1px;
}
.vampire__teeths::before,
.vampire__teeths::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  color: transparent;
  border-style: solid;
  border-width: 0.65rem 0.375rem 0 0.375rem;
  border-top-color: #fffae6;
  top: 0.95rem;
}
.vampire__teeths::before {
  left: 1rem;
}
.vampire__teeths::after {
  right: 1rem;
}

绘出 vampire__tongue

.vampire__tongue {
  position: absolute;
  width: 3.5rem;
  height: 1.75rem;
  background-color: #d63e49;
  bottom: -0.75rem;
  border-radius: 3.5rem 3.5rem 0 0;
}

再接着把 checkbox 隐藏掉即可

.halloween-input {
  display: none;
}

增加微笑动画 smile

.vampire__teeths {
  animation: smile 2s ease-in-out infinite;
}
.vampire__tongue {
  animation: smile 3s ease-in-out infinite;
}
@keyframes smile {
  50% {
    transform: scaleY(1.5);
  }
}

上述内容就是CSS使用toggle控件的方法，你们学到知识或技能了吗？如果还想学到更多技能或者丰富自己的知识储备，欢迎关注创新互联行业资讯频道。

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