html deneme alanı html kodu olan varmı

<div><strong><font color="#ff0000">&nbsp;KODLARİ SİTENİZE EKLEMEDEN &Ouml;NCE BURADA KONTROL EDİNİZ!!!</font></strong><br />
<table style="border: 1px solid rgb(149, 148, 146); background: rgb(235, 235, 234) none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; width: 600px;">
    <tbody>
        <tr>
            <td valign="top">
            <form name="form1" method="post">
                <textarea name="code" onclick="focus(this.code)" style="border: 1px solid rgb(185, 184, 182); padding: 5px; width: 300px; height: 300px;">HTML KODLARINI DENEMEK İ&Ccedil;İN KODLARI BURAYA KOPYALA/YAPIŞTIR METODUYLA KODLARIN &Ouml;N İZLEMESİNİ YAPABİLİRSİNİZ... </textarea>
            </form>
            </td>
            <td valign="top"><iframe frameborder="0" src="about:blank" name="preview" style="border: 1px solid rgb(185, 184, 182); background: rgb(255, 255, 255) none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; width: 300px; height: 300px;"></iframe></td>
        </tr>
    </tbody>
</table>
<button onclick="preview.document.write (document.getElementsByTagName ('TEXTAREA')[0].value); preview.document.close(); preview.focus()">&Ouml;N İZLE</button><button onclick="window.document.form1.code.value='';preview.document.write (document.getElementsByTagName ('TEXTAREA')[0].value); preview.document.close(); preview.focus()">TEMİZLE</button><button onclick="window.location.href=window.location.href">YENİLE</button></div>