CSS ::file-selector-button伪元素修改input上传文件按钮的样式

默认样式

修改后的样式

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>type:file</title>
    <style>
        .inputFile{
            /* 隐藏按钮后的文字 */
            font-size: 0;
        }
        /* 修改按钮后的文字颜色 */
        .inputFile[type="file"] {
            color: gray;
        }
        .inputFile::file-selector-button {
            height: 3rem;
            font-size: 1rem;
            color: #fff;
            border-radius: .25rem;
            border: 1px solid #f14a24;
            padding: .75rem 1rem;
            background-color: #f14a24;
            box-sizing: border-box;
            font-family: inherit;
            cursor: pointer;
        }
    </style>
</head>
<body>
    <input type="file" class="inputFile">
</body>
</html>