OPTGROUP−グループ選択

動作確認

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Which Web browser do you use most often? Netscape Navigator 4.x or higher Netscape Navigator 3.x Netscape Navigator 2.x Netscape Navigator 1.x Microsoft Internet Explorer 4.x or higher Microsoft Internet Explorer 3.x Microsoft Internet Explorer 2.x Microsoft Internet Explorer 1.x Opera 3.x or higher Opera 2.x Other