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optgroup in html

 by using this element we can group the options label is an attribute to provide the  group lable


<select size ="3" >
 < optgroup lable ="php">
<option> sharanam shah </option>
<option> apress </option>
<option> bible </option> 
</optgroup>
 < optgroup lable ="asp">
<option> sharanam shah </option>
<option> apress </option>
<option> bible </option> 
</optgroup>

<
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