<div class="join_submit_box"> <form id="ff"> <{foreach from=$forms item=form}> <{if $form.type == 'text'}> <div class="submit_cell"><input name="<{$form.name}>" type="text" class="input_style" placeholder="<{$form.name}>" ></div> <{/if}> <{if $form.type == 'textarea'}> <div class="submit_cell submit_cell_area"><p><textarea name="<{$form.name}>" class="input_textarea" placeholder="<{$form.name}>"></textarea></p></div> <{/if}> <{if $form.type == 'select'}> <select name="<{$form.name}>"> <option value="">请选择<{$form.name}></option> <{foreach from=$form.options item=option}> <option value="<{$option}>"><{$option}></option> <{/foreach}> </select> <{/if}> <{/foreach}> <section class="button-wrapper"> <a class="button" id="common_submit_btn">提交资料</a> </section> </form> </div> <script> $("select").on('change', function () { if ($(this).val() == '') { $(this).css({'color':'#999'}); } else { $(this).css({'color':''}); } }); </script>