trycss_float_clear 在线代码实例

 <h3>图片库</h3>
    <p>试着调整窗口,看看当图片没有足够的空间会发生什么。.</p>
    <img class="thumbnail" src="/upload2/statics/images/course/klematis_small.jpg" width="207" height="90">
    <img class="thumbnail" src="/upload2/statics/images/course/klematis2_small.jpg" width="107" height="80">
    <img class="thumbnail" src="/upload2/statics/images/course/klematis3_small.jpg" width="116" height="90">
    <img class="thumbnail" src="/upload2/statics/images/course/klematis4_small.jpg" width="120" height="90">
    <h3 class="text_line">第二行</h3>
    <img class="thumbnail" src="/upload2/statics/images/course/klematis_small.jpg" width="107" height="90">
    <img class="thumbnail" src="/upload2/statics/images/course/klematis2_small.jpg" width="107" height="80">
    <img class="thumbnail" src="/upload2/statics/images/course/klematis3_small.jpg" width="116" height="90">
    <img class="thumbnail" src="/upload2/statics/images/course/klematis4_small.jpg" width="120" height="90">