The dropdown menu left justifies while the Add to Cart button centers. Here is the code...
<form target="paypal" action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="XXXXXXXXXXXX">
<table>
<tr><td><input type="hidden" name="on0" value="Choose your Option">Choose your Option</td></tr><tr><td><select name="os0">
<option value="All Events Prior to 01/11/2022">All Events Prior to 01/11/2022 $45.00 USD</option>
<option value="All Events After 01/11/2022">All Events After 01/11/2022 $60.00 USD</option>
<option value="Friday Night Dance Only">Friday Night Dance Only $25.00 USD</option>
<option value="All Day Saturday Only">All Day Saturday Only $35.00 USD</option>
</select> </td></tr>
</table>
<input type="hidden" name="currency_code" value="USD">
<input type="image" src="https://www.paypalobjects.com/en_US/i/btn/btn_cart_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>
