$options可以自由定义，比如：

    <?= DetailView::widget([
        'model' => $model,
        'attributes' => [
            'uid',
            ['label'=>'gender','value'=>$model->getGenderText()],
        ],
        'template' => '<tr><th>{label}</th><td>{value}</td></tr>', 
        'options' => ['class1' => 'table table-striped table-bordered detail-view'],
    ]) ?>

定义为class1，输出的HTML为：

同理，其它HTML元素也可以类似自定义风格样式，比如CheckBox：

public static function activeCheckbox($model, $attribute, $options = [])

其中的$options也这样自定义即可

研究了一下Yii2.0源码，找到了答案，给大家分享如下：
DetailView可以自由定义样式

    <?= DetailView::widget([
        'model' => $model,
        'attributes' => [
            'uid',
            ['label'=>'gender','value'=>$model->getGenderText()],
        ],
        'template' => '<tr><th>{label}</th><td>{value}</td></tr>', 
        'options' => ['class' => 'table table-striped table-bordered detail-view'],
    ]) ?>

输出后的HTML为：

<table class="table table-striped table-bordered detail-view"><tr><th>Uid</th><td>1</td></tr><tr><th>gender</th><td>Female</td></tr></table>

其它具体参数，可以参考【yii\widgets\DetailView】

    public $attributes;
    /**
     * @var string|callable the template used to render a single attribute. If a string, the token `{label}`
     * and `{value}` will be replaced with the label and the value of the corresponding attribute.
     * If a callback (e.g. an anonymous function), the signature must be as follows:
     *
     * ~~~
     * function ($attribute, $index, $widget)
     * ~~~
     *
     * where `$attribute` refer to the specification of the attribute being rendered, `$index` is the zero-based
     * index of the attribute in the [[attributes]] array, and `$widget` refers to this widget instance.
     */
    public $template = "<tr><th>{label}</th><td>{value}</td></tr>";
    /**
     * @var array the HTML attributes for the container tag of this widget. The "tag" option specifies
     * what container tag should be used. It defaults to "table" if not set.
     * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
     */
    public $options = ['class' => 'table table-striped table-bordered detail-view'];
    /**
     * @var array|Formatter the formatter used to format model attribute values into displayable texts.
     * This can be either an instance of [[Formatter]] or an configuration array for creating the [[Formatter]]
     * instance. If this property is not set, the "formatter" application component will be used.
     */
    public $formatter;