Работает для любого количества строк и любой ширины без JavaScript - и отзывчив.Просто установите максимальную высоту, кратную вашей высоте строки: т.е. (высота строки 22 пикселя) * (максимум 3 строки текста) = (максимальная высота 66 пикселей).
https://codepen.io/freer4/pen/prKLPy
html, body, p { margin: 0; padding: 0; font-family: sans-serif;line-height:22px;}
.ellipsis{
overflow:hidden;
margin-bottom:1em;
position:relative;
}
.ellipsis:before {
content: "\02026";
position: absolute;
bottom: 0;
right:0;
width: 1.8em;
height:22px;
margin-left: -1.8em;
padding-right: 5px;
text-align: right;
background-size: 100% 100%;
background: linear-gradient(to right, rgba(255, 255, 255, 0), white 40%, white);
z-index:2;
}
.ellipsis::after{
content:"";
position:relative;
display:block;
float:right;
background:#FFF;
width:3em;
height:22px;
margin-top:-22px;
z-index:3;
}
/*For testing*/
.ellipsis{
max-width:500px;
text-align:justify;
}
.ellipsis-3{
max-height:66px;
}
.ellipsis-5{
max-height:110px;
}
<div class="ellipsis ellipsis-3">
<p>Here we can have a great many lines of text and it works as we expect it to. Here we can have a great many lines of text and it works as we expect it to. Here we can have a great many lines of text and it works as we expect it to. Here we can have a great many lines of text and it works as we expect it to.</p>
</div>
<div class="ellipsis ellipsis-5">
<p>The number of lines shown is easily controlled by setting the max-height of the .ellipsis element. The downsides are the requirement of a wrapping element, and that if the text is precisely as long as your number of lines, you'll get a white area covering the very trailing end of your text. You've been warned. This is just some pushing text to make the element longer. See the ellipsis? Yay.</p>
</div>