Question: I am trying to get checkboxes within a select dropdown (multiple) as below:

```
<select name="select_dd" size="5" multiple>
       <option value="1"><input type="checkbox" name="chk_val" value="1" />1</option>
</select>

```

I think the above is not a valid one as the checkboxes are appearing outside the select.

So I tried a different approach:

```
<div id="selectlist">
    <ul>
        <li><input type="checkbox" name="chk_val" value="1" />1</li>
        <li><input type="checkbox" name="chk_val" value="1" />1</li>
    </ul>
</div>

```

and then using css to style the div

```
#selectlist{
border:1px solid;
height:50px;
overflow-y:scroll;
width:auto;
text-align:left;

}
#selectlist ul{
list-style-type: none;
}

```

is this a good approach? Can anyone suggest if there are other alternatives available for this kind of use like using jquery plugins.

Answer: 
There is nothing wrong with this approach (how you wrapped it in a div above Ie your second example). Using CSS to style how you want your checkboxes inside of your list is perfectly fine.
You cannot have a input element within option tag. Using ul/li combination is the right alternative which you have done. You will have to write your own logic to behave it like a select control and raise the appropriate events.