如果您想对单行文本应用省略号(…)，CSS通过text-overflow属性使之变得有些容易。这仍然有点棘手(由于所有的要求-请参阅下面)，但文本溢出使它成为可能和可靠的。

然而，如果您想在多行文本上使用省略号——就像这里的情况一样——那么就别指望有什么乐趣了。CSS没有标准的方法来做到这一点，而且变通方法是随机的。

单行文本的省略

使用文本溢出，省略号可以应用于单行文本。CSS的要求如下:

必须有一个宽度，最大宽度或弹性基础 必须有空白:nowrap 必须有溢出的值而不是可见的 必须显示:块或内联块 (或功能对等物，如伸缩项目)。

这是可行的:

p { width: 200px; white-space: nowrap; overflow: hidden; display: inline-block; text-overflow: ellipsis; border: 1px solid #ddd; margin: 0; } <p> This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. </p>

新美国jsFiddle

但是，尝试删除宽度，或让溢出默认为可见，或删除空白:nowrap，或使用块容器元素以外的东西，AND，省略号失败得很惨。

这里有一个重要的结论:text-overflow:省略号对多行文本没有影响。(仅white-space: nowrap要求就消除了这种可能性。)

p { width: 200px; /* white-space: nowrap; */ height: 90px; /* new */ overflow: hidden; display: inline-block; text-overflow: ellipsis; border: 1px solid #ddd; margin: 0; } <p> This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. This is a test of CSS <i>text-overflow: ellipsis</i>. </p>

新美国jsFiddle

多行文本的省略

因为CSS在多行文本上没有省略号属性，所以创建了各种变通方法。这些方法可以在这里找到:

jQuery dotdotdot…… 行截断(截断多行文本) CSS省略:如何在纯CSS中管理多行省略 多行文本截断的纯CSS解决方案

上面的Mobify链接被删除了，现在引用了archive.org的副本，但似乎在这个代码依赖中实现了。

也许这个能帮到你们。多线椭圆与工具提示悬停。 https://codepen.io/Anugraha123/pen/WOBdOb

<div>
     <p class="cards-values">Lorem ipsum dolor sit amet,   consectetur adipiscing elit. Nunc aliquet lorem commodo, semper mauris nec, suscipit nisi. Nullam laoreet massa sit amet leo malesuada imperdiet eu a augue. Sed ac diam quis ante congue volutpat non vitae sem. Vivamus a felis id dui aliquam tempus
      </p>
      <span class="tooltip"></span>
</div>

这个人有最好的解决办法。css:

.multiline-ellipsis {
    display: block;
    display: -webkit-box;
    max-width: 400px;
    height: 109.2px;
    margin: 0 auto;
    font-size: 26px;
    line-height: 1.4;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

在浏览了整个互联网并尝试了很多这些选项后，唯一能确保它正确覆盖支持i.e.的方法是通过javascript，我创建了一个循环函数来查看需要多行截断的post项目。

*注意我使用Jquery，并要求你的post__items类有一个固定的最大高度。

// loop over post items
$('.post__items').each(function(){
    var textArray = $(this).text().split(' ');
    while($(this).prop('scrollHeight') > $(this).prop('offsetHeight')) {
        textArray.pop();
        $(this).text(textArray.join(' ') + '...');
     }
});

请检查下面的代码纯css技巧与适当的对齐，支持所有浏览器

.block-with-text { overflow: hidden; position: relative; line-height: 1.2em; max-height: 103px; text-align: justify; padding: 15px; } .block-with-text:after { content: '...'; position: absolute; right: 15px; bottom: -4px; background: linear-gradient(to right, #fffff2, #fff, #fff, #fff); } <p class="block-with-text">The Hitch Hiker's Guide to the Galaxy has a few things to say on the subject of towels. A towel, it says, is about the most massivelyuseful thing an interstellar hitch hiker can have. Partly it has great practical value - you can wrap it around you for warmth as you bound across the cold moons of Jaglan Beta; you can lie on it on the brilliant marble-sanded beaches of Santraginus V, inhaling the heady sea vapours; you can sleep under it beneath the stars which shine so redly on the desert world of Kakrafoon; use it to sail a mini raft down the slow heavy river Moth; wet it for use in hand-to-hand-combat; wrap it round your head to ward off noxious fumes or to avoid the gaze of the Ravenous Bugblatter Beast of Traal (a mindboggingly stupid animal, it assumes that if you can't see it, it can't see you - daft as a bush, but very ravenous); you can wave your towel in emergencies as a distress signal, and of course dry yourself off with it if it still seems to be clean enough. More importantly, a towel has immense psychological value. For some reason, if a strag (strag: non-hitch hiker) discovers that a hitch hiker has his towel with him, he will automatically assume that he is also in possession of a toothbrush, face flannel, soap, tin of biscuits, flask, compass, map, ball of string, gnat spray, wet weather gear, space suit etc., etc. Furthermore, the strag will then happily lend the hitch hiker any of these or a dozen other items that the hitch hiker might accidentally have "lost". What the strag will think is that any man who can hitch the length and breadth of the galaxy, rough it, slum it, struggle against terrible odds, win through, and still knows where his towel is is clearly a man to be reckoned with.</p>

我在YouTube的主页上看了一下它是如何解决这个问题的，并进行了简化:

.multine-ellipsis {
  -webkit-box-orient: vertical;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: normal;
}

这将允许2行代码，然后附加一个省略号。

要点:https://gist.github.com/eddybrando/386d3350c0b794ea87a2082bf4ab014b