changing Css property for textboxes (asp .net)

changing Css property for textboxes (asp .net)

Hi,
I need some help in creating a function that changes a specific CSS property for all 'asp:TextBox' type controls that have the CSS class of 'style1'
this function should fire when I click the 'btnTest' button

  1. jQuery(document).ready(function() {
  2. $("btnTest").click(function() {
  3. ??????

thanks