如何在yii2 GridView中为每个TH和TD添加css类

<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'columns' => [
        'id',
        'name',
        'email',
        // ...
    ],
]) ?>

<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'columns' => [
        [
            'attribute' => 'id',
            'headerOptions' => ['class' => 'my-header-class'],
            'contentOptions' => ['class' => 'my-td-class'],
        ],
        [
            'attribute' => 'name',
            'headerOptions' => ['class' => 'my-header-class'],
            'contentOptions' => ['class' => 'my-td-class'],
        ],
        [
            'attribute' => 'email',
            'headerOptions' => ['class' => 'my-header-class'],
            'contentOptions' => ['class' => 'my-td-class'],
        ],
        // ...
    ],
]) ?>