请老师过目

来源：3-9 编程练习

qq_鸭绿桥第一帅哥_0

2019-03-14 09:07:45

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8" />
        <title></title>
        <style type="text/css">
            /*写出去除的css*/
            input[type=number]::-webkit-inner-spin-button,
            input[type=number]::-webkit-outer-spin-button{
                -webkit-appearance: none;
                margin: 0;
            }
        </style>
    </head>
    <body>
        <input type="number" value="3">
    </body>
</html>

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