是否有一个解决方案，添加省略号内的最后一行与流体高度(20%)div ?
我在CSS中找到了-webkit-线夹函数，但在我的情况下，行号将取决于窗口大小。
p {
width:100%;
height:20%;
background:red;
position:absolute;
}
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sed dui felis. Vivamus vitae pharetra nisl, eget fringilla elit. Ut nec est sapien. Aliquam dignissim velit sed nunc imperdiet cursus. Proin arcu diam, tempus ac vehicula a, dictum quis nibh. Maecenas vitae quam ac mi venenatis vulputate. Suspendisse fermentum suscipit eros, ac ultricies leo sagittis quis. Nunc sollicitudin lorem eget eros eleifend facilisis. Quisque bibendum sem at bibendum suscipit. Nam id tellus mi. Mauris vestibulum, eros ac ultrices lacinia, justo est faucibus ipsum, sed sollicitudin sapien odio sed est. In massa ipsum, bibendum quis lorem et, volutpat ultricies nisi. Maecenas scelerisque sodales ipsum a hendreritLorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sed dui felis. Vivamus vitae pharetra nisl, eget fringilla elit. Ut nec est sapien. Aliquam dignissim velit sed nunc imperdiet cursus. Proin arcu diam, tempus ac vehicula a, dictum quis nibh. Maecenas vitae quam ac mi venenatis vulputate. Suspendisse fermentum suscipit eros, ac ultricies leo sagittis quis. Nunc sollicitudin lorem eget eros eleifend facilisis. Quisque bibendum sem at bibendum suscipit. Nam id tellus mi. Mauris vestibulum, eros ac ultrices lacinia, justo est faucibus ipsum, sed sollicitudin sapien odio sed est. In massa ipsum, bibendum quis lorem et, volutpat ultricies nisi. Maecenas scelerisque sodales ipsum a hendrerit.</p>
我有这个JSFiddle来说明这个问题。
https://jsfiddle.net/96knodm6/
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>
