google web fundamentals : https://developers.google.com/web/fundamentals/design-and-ui/media/images

abréger du texte :

1. text-overflow: ellipsis;
2. http://hackingui.com/front-end/a-pure-css-solution-for-multiline-text-truncation/
3. https://css-tricks.com/snippets/css/truncate-string-with-ellipsis/