YII2 activeform样式修改

<?php $form = ActiveForm::begin([
        'options'=>['enctype'=>'multipart/form-data','class' => 'form-horizontal'],
        'fieldConfig' => [  //统一修改字段的模板
            'template' => "{label}
<div class="col-lg-5">{input}</div>
<div class="col-lg-3">{error}</div>", 
　　　　　　　　//修改显示内容默认为{label}
{input}
{hint}
{error}  
是html代码显示时的换行

            'labelOptions' => ['class' => 'col-lg-2 control-label'],  //修改label的样式
        ],
    ]); ?>

//修改某字段的样式
<?= $form->field($model, 'img_path',[  
            'template' => "{label}
<div class="col-lg-3">{input}</div>
<div class="col-lg-2"><label for="uploadImg" class="btn btn-default forfocus1" onclick="changeImg(1,'forfocus');">选择图片<img src=""></label></div>
{error}",  
            'labelOptions' => ['class' => 'col-lg-2 control-label'],
        ])->textInput(['maxlength' => 255,'placeholder'=>'专题图片','readonly'=>true])->label('专题名称')->hint('错误提示信息') ?>

以下为一个完整的例子

<?php $form = ActiveForm::begin([
        'options'=>['enctype'=>'multipart/form-data','class' => 'form-horizontal'],
        'fieldConfig' => [  
            'template' => "{label}
<div class="col-lg-5">{input}</div>
<div class="col-lg-5">{error}</div>",  
            'labelOptions' => ['class' => 'col-lg-2 control-label'],
        ],
    ]); ?>
    
    <?= $form->field($model, 'title')->textInput(['maxlength' => 255,'placeholder'=>'请输入专题名称'])->label('专题名称') ?>
    <?= $form->field($model, 'img_path',[  
            'template' => "{label}
<div class="col-lg-3">{input}</div>
<div class="col-lg-2"><label for="uploadImg" class="btn btn-default forfocus1" onclick="changeImg(1,'forfocus');">选择图片<img src=""></label></div>
{error}",  
            'labelOptions' => ['class' => 'col-lg-2 control-label'],
        ])->textInput(['id'=>'img_path','maxlength' => 255,'placeholder'=>'专题图片','readonly'=>true])->label('专题名称') ?>
    <?= $form->field($model, 'showImg',[  
            'template' => "{label}
<div id="showImg" class='col-lg-10'></div>",  
            'labelOptions' => ['class' => 'col-lg-2 control-label'],
        ])->label('图片预览') ?>
    <?= $form->field($model, 'link_to')->textInput(['maxlength' => 255,'placeholder'=>'请输入专题链接'])->label('专题链接') ?>
    </div>
        
    <div class="form-group" style="margin-left: 50px;">
        <?= Html::submitButton($model->isNewRecord ? Yii::t('app', 'Create') : Yii::t('app', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
    </div>

    <?php ActiveForm::end(); ?>