问twitter引导转盘标题与照片宽度不匹配

EN

<div class="row">
    <div class="span8 offset2">
            <div id="myCarousel" class="carousel slide">

                  <div class="carousel-inner">

                 <!-- here I loop through and add a bunch of photos -->
                  {% for photo in record_photos %}

                    <div class="active item">
                        <a href="/url"><img src="some-src"></a>
                        <div class="carousel-caption">
                            <h3 class="center-it">some caption</h3>
                        </div>
                    </div>

                   {% endfor %}

                  </div>

                  <a class="carousel-control left" href="#myCarousel" data-slide="prev">&lsaquo;</a>
                  <a class="carousel-control right" href="#myCarousel" data-slide="next">&rsaquo;</a>

            </div>
        </div>
    </div>