<style> body {font:14px/18px Consolas;} div { 100px;padding:10px; margin:10px 0px 30px 0px; border:1px solid #CCC; } .float {overflow:hidden;} /*加overflow防止容器坍缩*/ .float span {float:right;} .align {text-align:right;} .align span {text-align:left;} .direction {direction:rtl;} .direction span {direction:ltr;display:inline-block;} </style> float right <div class="float"> <span>次</span><span>碳</span><span>酸</span><span>钴</span> </div> align right <div class="align"> <span>次</span><span>碳</span><span>酸</span><span>钴</span> </div> direction rtl <div class="direction"> <span>次</span><span>碳</span><span>酸</span><span>钴</span> </div>