CSS 伪类修改input选中样式

 主要是用到了after伪类和字体符号。

input{
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    display: inline-block;
}
input:after{
    content: "";
    font-size: 18px;
    display: inline-block;
    width: 14px;
    height: 14px;
    line-height: 14px;
    text-align: center;
    border: 1px solid #666fff;
    vertical-align: bottom;
}
input:checked:after{
    content: "\2714";
}

<label for="gender-male">男</label><input id="gender-male" type="radio" name="gender" value="男">
<label for="gender-female">女</label><input id="gender-female" type="radio" name="gender" value="女">

效果如下：

---------------------------------------2020-09-10 新增---------------------------------------

CSS实现开关效果

input#status{
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    display: inline-block;
    width: 46px;
    height: 20px;
    padding: 0 3px;
    border-radius: 8px;
    background-color: #ccc;
    position: relative;
    outline: none;
}

input#status:checked{
    background-color: limegreen;
    justify-content: flex-end;
}

input#status::after{
    position: absolute;
    left: 4px;
    top: 1px;
    content: "";
    display: inline-block;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: #eee;
    transition: left ease-in .2s;
}

input#status:checked::after{
    background-color: #aaa;
    left: 24px;
}

<div style="display: flex; align-items: center;">
    <label for="status">切换</label><input id="status" type="checkbox">
</div>

效果如下:

  

 

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