多选和单选按钮的切换动画

栏目: 后端 · 前端 · 发布时间: 6年前

核心属性

-webkit-appearance: none 消除元素的默认外观

:hover/:checked + transition + background 背景颜色的过渡效果

text-align: center + line-height: 40px 对勾符号水平垂直居中显示

animation + width + height + opacity 按钮状态切换的动画效果

提示：::after伪元素实现的动画的中心点与单选多选按钮的中心点是对齐的，对齐的方法就是将伪元素上移和左移80px的距离，这个距离是通过200px ÷ 2 - 40px ÷ 2 = 80px计算得出的。

```
<div class="container">
```
```
<div>
```
```
<label>
```

<input type="checkbox" class="option-input checkbox" checked />

```
选项一
```
```
</label>
```
```
<label>
```

<input type="checkbox" class="option-input checkbox" />

```
选项二
```
```
</label>
```
```
<label>
```

<input type="checkbox" class="option-input checkbox" />

```
选项三
```
```
</label>
```
```
</div>
```
```
<div>
```
```
<label>
```

<input type="radio" class="option-input radio" name="example" checked />

```
选项一
```
```
</label>
```
```
<label>
```

<input type="radio" class="option-input radio" name="example" />

```
选项二
```
```
</label>
```
```
<label>
```

<input type="radio" class="option-input radio" name="example" />

```
选项三
```
```
</label>
```
```
</div>
```
```
</div>
```

```
body {
```
```
color: #9faab7;
```
```
background: #e8ebee;
```
```
}
```
```
body div {
```
```
padding: 1rem;
```
```
}
```
```
body label {
```
```
display: block;
```
```
line-height: 40px;
```
```
}
```
```
.option-input {
```
```
position: relative;
```
```
display: inline-block;
```
```
top: 13.33333px;
```
```
height: 40px;
```
```
width: 40px;
```
```
margin-right: 0.5rem;
```
```
color: #fff;
```
```
background: #cbd1d8;
```
```
outline: none;
```
```
cursor: pointer;
```
```
-webkit-appearance: none;
```
```
transition: all 0.15s ease-out 0s;
```
```
z-index: 1;
```
```
}
```
```
.option-input:hover {
```
```
background: #9faab7;
```
```
}
```
```
.option-input:checked {
```
```
background: #40e0d0;
```
```
}
```
```
.option-input:checked::before {
```
```
content: '✔';
```
```
position: absolute;
```
```
display: inline-block;
```
```
height: 40px;
```
```
width: 40px;
```
```
font-size: 26.66667px;
```
```
text-align: center;
```
```
line-height: 40px;
```
```
}
```
```
.option-input:checked::after {
```
```
content: '';
```
```
position: relative;
```
```
background: #40e0d0;
```
```
display: block;
```
```
animation: click-wave 0.65s;
```
```
}
```
```
@keyframes click-wave {
```
```
0% {
```
```
height: 40px;
```
```
width: 40px;
```
```
opacity: 0.35;
```
```
}
```
```
100% {
```
```
height: 200px;
```
```
width: 200px;
```
```
margin-left: -80px;
```
```
margin-top: -80px;
```
```
opacity: 0;
```
```
}
```
```
}
```
```
.option-input.radio {
```
```
border-radius: 50%;
```
```
}
```
```
.option-input.radio::after {
```
```
border-radius: 50%;
```
```
}
```

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