用unslider实现轮播图，图像上没有圆点怎么回事？

Question

<style>
        .banner { position: relative;overflow:auto}        .banner li { list-style: none; }        
        .banner ul li { float: left; }</style>

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 <div class="CrisprBanner banner">                <ul >
                    <li>
                        <img src="banner0.png">
                
                    </li>
                    <li>
                        <img src="banner.png">
    
                    </li>
    
                </ul>
            </div>

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