Text truncation (ellipsis) thực hiện thế nào?

Hai pattern tùy theo số dòng:

Single line:

.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

Multi-line (ví dụ 3 dòng):

.clamp {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

Mặc dù mang prefix -webkit-, line-clamp đã được hỗ trợ rộng rãi trên tất cả browsers hiện đại (Chrome 6+, Firefox 68+, Safari 5+).

There are two approaches depending on the number of lines.

• For single line, combine three properties: white-space: nowrap (prevents text from wrapping), overflow: hidden (hides overflow), and text-overflow: ellipsis (adds '...').
• For multi-line (e.g., limit to 3 lines): display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; overflow: hidden.
• Despite the -webkit- prefix, line-clamp is now widely supported across all modern browsers.