我发现了一个javascript技巧，但你必须使用字符串的长度。假设你想要3行宽250px，你可以计算每行的长度。

//get the total character length.
//Haha this might vary if you have a text with lots of "i" vs "w"
var totalLength = (width / yourFontSize) * yourNumberOfLines

//then ellipsify
function shorten(text, totalLength) {
    var ret = text;
    if (ret.length > totalLength) {
        ret = ret.substr(0, totalLength-3) + "...";
    }
    return ret;
}

在查看了W3规范的文本溢出后，我认为仅使用CSS是不可能的。省略号是一个新属性，所以它可能还没有得到太多的使用或反馈。

然而，这家伙似乎问了一个类似(或相同)的问题，有人能够提出一个很好的jQuery解决方案。您可以在这里演示解决方案:http://jsfiddle.net/MPkSF/

如果javascript不是一个选择，我认为你可能不走运…

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

点击这里查看更多信息

这里有很多答案，但我需要的是:

CSS只 面向未来(与时间更加兼容) 不会把单词分开(只在空格上分开)

需要注意的是，它不为不支持-webkit-线夹规则的浏览器(目前是IE, Edge, Firefox)提供省略号，但它确实使用渐变淡出文本。

.clampMe { position: relative; height: 2.4em; overflow: hidden; } .clampMe:after { content: ""; text-align: right; position: absolute; bottom: 0; right: 0; width: 50%; height: 1.2em; /* Just use multiples of the line-height */ background: linear-gradient(to right, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 80%); } /* Now add in code for the browsers that support -webkit-line-clamp and overwrite the non-supportive stuff */ @supports (-webkit-line-clamp: 2) { .clampMe { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; } .clampMe:after { display: none; } } <p class="clampMe">There's a lot more text in here than what you'll ever see. Pellentesque habitant testalotish morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>

你可以在这个CodePen中看到它的运行，你也可以在这里看到Javascript版本(没有jQuery)。

基于-webkit-line-clamp的纯CSS方法:

@-webkit-keyframes ellipsis {/*for test*/ 0% { width: 622px } 50% { width: 311px } 100% { width: 622px } } .ellipsis { max-height: 40px;/* h*n */ overflow: hidden; background: #eee; -webkit-animation: ellipsis ease 5s infinite;/*for test*/ /** overflow: visible; /**/ } .ellipsis .content { position: relative; display: -webkit-box; -webkit-box-orient: vertical; -webkit-box-pack: center; font-size: 50px;/* w */ line-height: 20px;/* line-height h */ color: transparent; -webkit-line-clamp: 2;/* max row number n */ vertical-align: top; } .ellipsis .text { display: inline; vertical-align: top; font-size: 14px; color: #000; } .ellipsis .overlay { position: absolute; top: 0; left: 50%; width: 100%; height: 100%; overflow: hidden; /** overflow: visible; left: 0; background: rgba(0,0,0,.5); /**/ } .ellipsis .overlay:before { content: ""; display: block; float: left; width: 50%; height: 100%; /** background: lightgreen; /**/ } .ellipsis .placeholder { float: left; width: 50%; height: 40px;/* h*n */ /** background: lightblue; /**/ } .ellipsis .more { position: relative; top: -20px;/* -h */ left: -50px;/* -w */ float: left; color: #000; width: 50px;/* width of the .more w */ height: 20px;/* h */ font-size: 14px; /** top: 0; left: 0; background: orange; /**/ } <div class='ellipsis'> <div class='content'> <div class='text'>text text text text text text text text text text text text text text text text text text text text text </div> <div class='overlay'> <div class='placeholder'></div> <div class='more'>...more</div> </div> </div> </div>

有点晚了，但我想到了，我认为，是一个独特的解决方案。而不是试图通过css技巧或js插入自己的省略号，我想我会试着使用单行限制。所以我复制了每个“行”的文本，只是使用负文本缩进，以确保一行从最后一行停止的地方开始。小提琴

CSS:

#wrapper{
    font-size: 20pt;
    line-height: 22pt;
    width: 100%;
    overflow: hidden;
    padding: 0;
    margin: 0;
}

.text-block-line{
    height: 22pt;
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    white-space: nowrap;
    width: auto;
}
.text-block-line:last-child{
    text-overflow: ellipsis;
}

/*the follwing is suboptimal but neccesary I think. I'd probably just make a sass mixin that I can feed a max number of lines to and have them avialable. Number of lines will need to be controlled by server or client template which is no worse than doing a character count clip server side now. */
.line2{
    text-indent: -100%;
}
.line3{
    text-indent: -200%;
}
.line4{
    text-indent: -300%;
}

HTML:

<p id="wrapper" class="redraw">
    <span class="text-block-line line1">This text is repeated for every line that you want to be displayed in your element. This example has a max of 4 lines before the ellipsis occurs. Try scaling the preview window width to see the effect.</span>
    <span class="text-block-line line2">This text is repeated for every line that you want to be displayed in your element. This example has a max of 4 lines before the ellipsis occurs. Try scaling the preview window width to see the effect.</span>
    <span class="text-block-line line3">This text is repeated for every line that you want to be displayed in your element. This example has a max of 4 lines before the ellipsis occurs. Try scaling the preview window width to see the effect.</span>
    <span class="text-block-line line4">This text is repeated for every line that you want to be displayed in your element. This example has a max of 4 lines before the ellipsis occurs. Try scaling the preview window width to see the effect.</span>
</p>

更多的细节在小提琴。有一个问题与浏览器回流，我使用JS重绘，这样做检查它，但这是基本概念。任何想法/建议都非常感谢。