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                        /前端开发
                        
                            /JavaScript
                        
                        /Tab选项卡切换效果

照着的做怎么mod类的margin-left好像不起作用，依旧贴着浏览器边

 <div class="mod" style="display:block">
            	<ul>
                	<li>
                    	<a href="#">
                        	尤文联赛完美收官
                        </a>
                    </li>
                    <li>
                    	<a href="#">
                          哈维西甲谢幕梅西2球
                        </a>
                    </li>
                     <li>
                    	<a href="#">
                        	切尔西vs桑德兰
                        </a>
                    </li>
                     <li>
                    	<a href="#">
                        	阿森纳vs西布朗
                        </a>
                    </li>
                </ul>
            </div>

.notice-con .mod{margin:10px 10px 10px 19px;}

.notice-con .mod ul li{float:left;width:134px;height:25px;overflow:hidden;}