一个基于-webkit-line-clamp的纯CSS方法，适用于webkit:

@-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>

这是一个纯css的好例子。

.container{ width: 200px; } .block-with-text { overflow: hidden; position: relative; line-height: 1.2em; max-height: 3.6em; text-align: justify; margin-right: -1em; padding-right: 1em; } .block-with-text+.block-with-text{ margin-top:10px; } .block-with-text:before { content: '...'; position: absolute; right: 0; bottom: 0; } .block-with-text:after { content: ''; position: absolute; right: 0; width: 1em; height: 1em; margin-top: 0.2em; background: white; } <div class="container"> <div class="block-with-text"> Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a </div> <div class="block-with-text"> Lorem Ipsum is simply dummy text of the printing and typesetting industry </div> <div class="block-with-text"> Lorem Ipsum is simply </div> </div>

这应该在webkit浏览器中工作:

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

浏览器支持

div { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; } * { font-family: verdana; } <div> The <b><a target='_blank' href='https://developer.mozilla.org/docs/Web/CSS/-webkit-line-clamp'>-webkit-line-clamp</a></b> CSS property allows limiting of the contents of a block container to the specified number of lines. It only works in combination with the display property set to <b>-webkit-box</b> or <b>-webkit-inline-box</b> and the <b>-webkit-box-orient</b> property set to vertical. In most cases you will also want to set overflow to hidden, otherwise the contents won't be clipped but an ellipsis will still be shown after the specified number of lines. When applied to anchor elements, the truncating can happen in the middle of the text, not necessarily at the end. </div>

迟回复，但一个html换行也可以，所以你可以做一个html + css唯一的解决方案。所以通常使用br元素是不好的做法，但如果你用br打断了注释，text-overflow省略号将从html文本的下一行开始。

没有简单的方法。使用clip .js库。

$clamp(myHeader, {clamp: 3});

纯css方式用省略号修饰多行文本

调整文本容器的高度， 用-webkit-line-clamp控制断线:2;

.block-ellipsis {
  display: block;
  display: -webkit-box;
  max-width: 100%;
  height: 30px;
  margin: 0 auto;
  font-size: 14px;
  line-height: 1;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}