文字溢出省略

.txt{font-size: 12px;color: #666666;170px;height:2.8em;line-height:1.4em;position:relative;overflow:hidden;} 
.txt::after{content:"...";font-weight:bold;position:absolute;bottom:0;right:0;padding:0 20px 1px 45px;background:url(http://css88.b0.upaiyun.com/css88/2014/09/ellipsis_bg.png) repeat-y;}

 方法二：

 .txt{
 overflow: hidden;
 text-overflow: ellipsis;
 white-space: nowrap;
}

 方法三：

display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 3;
overflow: hidden;

　方法四：

p{position: relative; line-height: 20px; max-height: 40px;overflow: hidden;}
p::after{content: "..."; position: absolute; bottom: 0; right: 0; padding-left: 40px;
background: -webkit-linear-gradient(left, transparent, #fff 55%);
background: -o-linear-gradient(right, transparent, #fff 55%);
background: -moz-linear-gradient(right, transparent, #fff 55%);
background: linear-gradient(to right, transparent, #fff 55%);
}

方法五

$(document).ready(function(){
//限制字符个数
$(“.zxx_text_overflow”).each(function(){
var maxwidth=23;
if($(this).text().length>maxwidth){
$(this).text($(this).text().substring(0,maxwidth));
$(this).html($(this).html()+’…’);
}
});
});

　　

http://www.zhangxinxu.com/wordpress/2009/09/%E5%85%B3%E4%BA%8E%E6%96%87%E5%AD%97%E5%86%85%E5%AE%B9%E6%BA%A2%E5%87%BA%E7%94%A8%E7%82%B9%E7%82%B9%E7%82%B9-%E7%9C%81%E7%95%A5%E5%8F%B7%E8%A1%A8%E7%A4%BA/

方法N：

http://www.css88.com/archives/5206