我一直有这个问题，我想要一个解决方案，可以很容易地与动态宽度工作。解决方案使用css网格。 下面是代码的样子:

.parent { 显示:网格; Grid-template-columns: auto 1fr; ｝ .dynamic-width-child { 空白:nowrap;} 文本溢出:省略; 溢出:隐藏; ｝ .fixed-width-child { 空白:nowrap;} ｝ < div class = "父" > < div class = " dynamic-width-child”> iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii asdfhlhlafh; lshd flhsd; lhfaaaaaaaaaaaaaaaaaaaa < / div > < div class = " fixed-width-child”>为什么?zed < / div > < / div >

我必须做出一些长描述椭圆(只采取一个车道)，同时响应，所以我的解决方案是让文本换行(而不是空白:nowrap)，而不是固定宽度，我添加了固定高度:

span { display: inline-block; line-height: 1rem; height: 1rem; overflow: hidden; // OPTIONAL LINES width: 75%; background: green; // white-space: normal; default } <span> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Commodi quia quod reprehenderit saepe sit. Animi deleniti distinctio dolorum iste molestias reiciendis saepe. Ea eius ex, ipsam iusto laudantium natus obcaecati quas rem repellat temporibus! A alias at, atque deserunt dignissimos dolor earum, eligendi eveniet exercitationem natus non, odit sint sit tempore voluptate. Commodi culpa ex facere id minima nihil nulla omnis praesentium quasi quia quibusdam recusandae repellat sequi ullam, voluptates. Aliquam commodi debitis delectus magnam nulla, omnis sequi sint unde voluptas voluptatum. Adipisci aliquam deserunt dolor enim facilis libero, maxime molestias, nemo neque non nostrum placeat reprehenderit, rerum ullam vel? A atque autem consectetur cum, doloremque doloribus fugiat hic id iste nemo nesciunt officia quaerat quibusdam quidem quisquam similique sit tempora vel. Accusamus aspernatur at au </span>

包括info后面写的四行，以便省略号起作用

.app a
{
 color: #fff;
 font: bold 15px/18px Arial;
 height: 18px;
 margin: 0 5px 0 5px;
 padding: 0;
 position: relative;
 text-align: center;
 text-decoration: none;
 width: 140px;

 /* 
 Note: The Below 4 Lines are necessary for ellipsis to work.
 */

 display: block;/* Change it as per your requirement. */
 overflow: hidden;
 text-overflow: ellipsis;
 white-space: nowrap;
}

公认的答案是棒极了。但是，您仍然可以使用% width并获得text-overflow: ellipsis。解决方法很简单:

display: inline-block; /* for inline elements e.g. span, strong, em etc */
text-overflow: ellipsis;
width: calc(80%); /* The trick is here! */

似乎无论何时使用calc，最终值都是以绝对像素表示的，因此对于1000px宽度的容器，将80%转换为800px之类的值。因此，不要使用width: [YOUR PERCENT]%，而是使用width: calc([YOUR PERCENT]%)。

添加显示:块;或显示:inline-block;#User_Apps_Content .DLD_App

demo

你也可以添加float:left;在这个选择器内部:

#User_Apps_Content .DLD_App a