效果一
<body> <div class="container"> <img src="img/pic01.jpg" class="img-responsive" /> <hr /> <img src="img/pic01.jpg" width="150" height="150" class="img-rounded" /> <img src="img/pic01.jpg" width="150" height="150" class="img-circle" /> <img src="img/pic01.jpg" width="150" height="150" class="img-thumbnail" /> <hr /> <p class="text-danger">大家好</p> <p class="text-info">大家好</p> <p class="text-primary">大家好</p> <hr /> <p class="bg-info text-danger">大家好</p> <hr/> <button type="button" class="close">×</button> <a href="#" class="close">×</a> <hr /> <span class="caret"></span> </body> 效果二
<body> <div class="center-block"> 居中 </div> <div> <div class="pull-left" style="width:200px;">居左</div> <div class="pull-right" style="width: 200px;">居右</div> <div class="clearfix visible-sm"></div> <div class=" visible-sm">ccc</div> </div> </body>
