优点: +跨浏览器(IE11, Edge, Chrome, Firefox, Safari等) +最自然的外观

缺点: -为DOM添加了很多额外的元素

我对我见过的所有变通办法都不满意。他们大多数使用线钳，目前只支持在webkit。所以我一直在研究，直到我想出了一个解决方案。这个纯javascript解决方案应该与IE10和更高版本以及所有现代浏览器兼容。在下面的stackoverflow示例空间之外，这是未经测试的。

我认为这是一个很好的解决方案。一个重要的警告是，它为容器内的每个单词创建了一个跨度，这将影响布局性能，因此您的里程可能会有所不同。

//This is designed to be run on page load, but if you wanted you could put all of this in a function and addEventListener and call it whenever the container is resized. var $container = document.querySelector('.ellipses-container'); //optional - show the full text on hover with a simple title attribute $container.title = $container.textContent.trim(); $container.textContent.trim().split(' ').some(function (word) { //create a span for each word and append it to the container var newWordSpan = document.createElement('span'); newWordSpan.textContent = word; $container.appendChild(newWordSpan); if (newWordSpan.getBoundingClientRect().bottom > $container.getBoundingClientRect().bottom) { //it gets into this block for the first element that has part of itself below the bottom of the container //get the last visible element var containerChildNodes = $container.childNodes; var lastVisibleElement = containerChildNodes[containerChildNodes.length - 2]; //replace this final span with the ellipsis character newWordSpan.textContent = '\u2026'; //if the last visible word ended very near the end of the line the ellipsis will have wrapped to the next line, so we need to remove letters from the last visible word while (lastVisibleElement.textContent != "" && newWordSpan.getBoundingClientRect().bottom > $container.getBoundingClientRect().bottom) { lastVisibleElement.style.marginRight = 0; lastVisibleElement.textContent = lastVisibleElement.textContent.slice(0, -1); } //using .some() so that we can short circuit at this point and no more spans will be added return true; } }); .multi-line-container { border: 1px solid lightgrey; padding: 4px; height: 150px; width: 300px; } .ellipses-container { display: inline-flex; flex-wrap: wrap; justify-content: flex-start; align-content: flex-start; /* optionally use align-content:stretch, the default, if you don't like the extra space at the bottom of the box if there's a half-line gap */ overflow: hidden; position: relative; } .ellipses-container > span { flex: 0 0 auto; margin-right: .25em; } .text-body { display: none; } <div class="multi-line-container ellipses-container"> <div class="text-body ellipses-text">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque luctus ut massa eget porttitor. Nulla a eros sit amet ex scelerisque iaculis nec vitae turpis. Sed pharetra tincidunt ante, in mollis turpis consectetur at. Praesent venenatis pulvinar lectus, at tincidunt nunc finibus non. Duis tortor lectus, elementum faucibus bibendum vitae, egestas bibendum ex. Maecenas vitae augue vitae dui condimentum imperdiet sit amet mattis quam. Duis eleifend scelerisque magna sed imperdiet. Mauris tempus rutrum metus, a ullamcorper erat fringilla a. Suspendisse potenti. Praesent et mi enim. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </div> </div>

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(' ') + '...');
     }
});

糟糕的CSS不支持跨浏览器多行夹紧，只有webkit似乎在推动它。

你可以尝试使用一个简单的Javascript省略号库，比如github上的Ellipsity，源代码非常干净和小，所以如果你确实需要做任何额外的改变，它应该很容易。

https://github.com/Xela101/Ellipsity

对此，我提出了自己的解决方案:

/*this JS code puts the ellipsis (...) at the end of multiline ellipsis elements
 *
 * to use the multiline ellipsis on an element give it the following CSS properties
 * line-height:xxx
 * height:xxx (must line-height * number of wanted lines)
 * overflow:hidden
 *
 * and have the class js_ellipsis
 * */

//do all ellipsis when jQuery loads
jQuery(document).ready(function($) {put_ellipsisses();});

//redo ellipsis when window resizes
var re_ellipsis_timeout;
jQuery( window ).resize(function() {
    //timeout mechanism prevents from chain calling the function on resize
    clearTimeout(re_ellipsis_timeout);
    re_ellipsis_timeout = setTimeout(function(){ console.log("re_ellipsis_timeout finishes"); put_ellipsisses(); }, 500);
});

//the main function
function put_ellipsisses(){
    jQuery(".js_ellipsis").each(function(){

        //remember initial text to be able to regrow when space increases
        var object_data=jQuery(this).data();
        if(typeof object_data.oldtext != "undefined"){
            jQuery(this).text(object_data.oldtext);
        }else{
            object_data.oldtext = jQuery(this).text();
            jQuery(this).data(object_data);
        }

        //truncate and ellipsis
        var clientHeight = this.clientHeight;
        var maxturns=100; var countturns=0;
        while (this.scrollHeight > clientHeight && countturns < maxturns) {
            countturns++;
            jQuery(this).text(function (index, text) {
                return text.replace(/\W*\s(\S)*$/, '...');
            });
        }
    });
}

You can achieve this by a few lines of CSS and JS.

CSS:

        div.clip-context {
          max-height: 95px;
          word-break: break-all;
          white-space: normal;
          word-wrap: break-word; //Breaking unicode line for MS-Edge works with this property;
        }

JS:

        $(document).ready(function(){
             for(let c of $("div.clip-context")){
                    //If each of element content exceeds 95px its css height, extract some first 
                    //lines by specifying first length of its text content. 
                   if($(c).innerHeight() >= 95){
                        //Define text length for extracting, here 170.
                        $(c).text($(c).text().substr(0, 170)); 
                        $(c).append(" ...");
                   }
             }

        });

HTML:

        <div class="clip-context">
            (Here some text)
        </div>

优点: +跨浏览器(IE11, Edge, Chrome, Firefox, Safari等) +最自然的外观

缺点: -为DOM添加了很多额外的元素

我对我见过的所有变通办法都不满意。他们大多数使用线钳，目前只支持在webkit。所以我一直在研究，直到我想出了一个解决方案。这个纯javascript解决方案应该与IE10和更高版本以及所有现代浏览器兼容。在下面的stackoverflow示例空间之外，这是未经测试的。

我认为这是一个很好的解决方案。一个重要的警告是，它为容器内的每个单词创建了一个跨度，这将影响布局性能，因此您的里程可能会有所不同。

//This is designed to be run on page load, but if you wanted you could put all of this in a function and addEventListener and call it whenever the container is resized. var $container = document.querySelector('.ellipses-container'); //optional - show the full text on hover with a simple title attribute $container.title = $container.textContent.trim(); $container.textContent.trim().split(' ').some(function (word) { //create a span for each word and append it to the container var newWordSpan = document.createElement('span'); newWordSpan.textContent = word; $container.appendChild(newWordSpan); if (newWordSpan.getBoundingClientRect().bottom > $container.getBoundingClientRect().bottom) { //it gets into this block for the first element that has part of itself below the bottom of the container //get the last visible element var containerChildNodes = $container.childNodes; var lastVisibleElement = containerChildNodes[containerChildNodes.length - 2]; //replace this final span with the ellipsis character newWordSpan.textContent = '\u2026'; //if the last visible word ended very near the end of the line the ellipsis will have wrapped to the next line, so we need to remove letters from the last visible word while (lastVisibleElement.textContent != "" && newWordSpan.getBoundingClientRect().bottom > $container.getBoundingClientRect().bottom) { lastVisibleElement.style.marginRight = 0; lastVisibleElement.textContent = lastVisibleElement.textContent.slice(0, -1); } //using .some() so that we can short circuit at this point and no more spans will be added return true; } }); .multi-line-container { border: 1px solid lightgrey; padding: 4px; height: 150px; width: 300px; } .ellipses-container { display: inline-flex; flex-wrap: wrap; justify-content: flex-start; align-content: flex-start; /* optionally use align-content:stretch, the default, if you don't like the extra space at the bottom of the box if there's a half-line gap */ overflow: hidden; position: relative; } .ellipses-container > span { flex: 0 0 auto; margin-right: .25em; } .text-body { display: none; } <div class="multi-line-container ellipses-container"> <div class="text-body ellipses-text">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque luctus ut massa eget porttitor. Nulla a eros sit amet ex scelerisque iaculis nec vitae turpis. Sed pharetra tincidunt ante, in mollis turpis consectetur at. Praesent venenatis pulvinar lectus, at tincidunt nunc finibus non. Duis tortor lectus, elementum faucibus bibendum vitae, egestas bibendum ex. Maecenas vitae augue vitae dui condimentum imperdiet sit amet mattis quam. Duis eleifend scelerisque magna sed imperdiet. Mauris tempus rutrum metus, a ullamcorper erat fringilla a. Suspendisse potenti. Praesent et mi enim. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </div> </div>