How to apply css styles to codeigniter dropdown?

Can anyone explain me how to apply css styles to form_dropdown function in codeigniter ? I would like the form to look like

<select name="dropdown" st开发者_开发问答yle="width: 240px; font-size: 13px">
....
</select

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Aside from the fact it'd be best to define the styles via an external stylesheet rather than inline, you can do it as follows:

form_dropdown('dropdown', $options, $selected, 'style="width: 240px; font-size: 13px"');

You could just as easily add a class to the <select> and then add the styles in your stylesheet:

form_dropdown('dropdown', $options, $selected, 'class="foo"');

In either case, if you don't have a value for $selected, set it to array()

form_dropdown('dropdown', $options, array(), 'style="width: 240px; font-size: 13px"');

Although you could get away setting it to null or '' for convenience.

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try this one I use bootstap class call .form-control

 <?php echo form_dropdown('Cuntry"'.'class="form-control', $Cuntry); ?>

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form_dropdown('dropdown', $options, $selected, 'class="form-control selectpicker" data-size="8" ');

data-size="8"