Code: Overflow:hidden; White-space:nowrap; Text-overflow:ellipsis;
Key code: text-overflow:ellipsis;
Explanation: The simple understanding is that I want to limit the text to one line (white-space:nowrap;), that the line is bound (width), and that the part of your overflow is to be hidden (overflow:hidden;), and then an ellipsis ( text-overflow:ellipsis).
Text-ellipsis is a special style, and the explanation is this: the Text-overflow property is only annotations, and if the text overflows, the ellipsis is displayed. No other style attribute definitions are available. The effect of an ellipsis on overflow must also be defined: Force the text to appear on one line (white-space:nowrap) and overflow content as hidden (Overflow:hidden), only in order to achieve the effect of overflow text display ellipsis.
CSS out-of-section display ellipsis (GO)