di web html
langsung saja
1. buka notepad anda
2. masukkan kode dibawah ini
<html xinlns="http://www.w3.org/1999/xhtml" lang="en"xml : lang="en"xml : lang="en">
<head>
<title>creating groups of options with a disabled option</title>
</head>
<body>
<form action="http://www.example.org/info.asp"methood="get" name="frminfo">
please select the product you are interested in:<br/>
<select name="selinformation">
<option disabled="disabled" value="">-- hardware--</option>
<option value="desktop">desktop computers</option>
</optgroup>
<optgroup label="software">
<optional value="officesoftware">office software</option>
<option value="games">games</option>
</optgroup>
<optgroup label="peripherals">
<option value ="monitors">monitor</option>
<option value ="input devices">input devices</option>
<option value ="storage">storage</option>
</select>
<br /><br /><input type="submit" value="submit" />
</form>
</body>
</html>
3. simpan dengn nama.html
mka hasilnya akan seperti gambar dibawah ini
selamat mencoba :)
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