<?php $form = ActiveForm::begin(['id' => 'login-form', 'fieldConfig'=>[ 'template'=> "{label}<div >{input}</div> {error}",]]); ?>
$form = ActiveForm::begin([ 'fieldConfig'=>[ 'template'=> "{label} <div class="col-sm-8">{input}</div> {error}", ] ]);
统一的样式可以在开头统一配置,个性化的设置只能每个filed单独配置。