css如何自定义checkbox样式？（代码实例）

nbsp;html>
    <meta>
    <title>checkbox</title>
    <style>
        input {
            width: 16px;
            height: 16px;
            margin-top: 0;
            background-color: #fff;            
            border: 1px solid #c9c9c9;
            border-radius: 2px;
            color: #fff;
            text-align: center;
            line-height: 15px;
            -webkit-appearance:none;
            -moz-appearance:none;
            -ms-appearance:none;
            -o-appearance:none;
            appearance:none;
            outline: none;
        }

        input:hover {
            border-color: #43adea;
        }

        input:checked {
            color: #fff;
            background-color: #43adea;
            border: 1px solid #43adea;
        }

        input:after {
            content: "✔";
        }
    </style>
    <input>
    <input>