Does the CSS implement multiple lines beyond the display ellipsis?

can be implemented, but with the-webkit-private property. I have solved it with JS. The code is as follows:
Text-overflow:-o-ellipsis-lastline;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;- webkit-line-clamp:2;-webkit-box-orient:vertical;

or JavaScript can do it.

For example, you only want to display the first 20 words, the following text is replaced with ellipses, JS code is as follows:

var str = ' Only show 20 text only show 20 text only show 20 text only show 20 text only 20 text only show 20 text only 20 text only shows 20 text only 20 text only shows 20 text only 20 text only show 20 text only display the same as the first six words '  ;
str = STR.SUBSTR (0,20) + ' ... ';
alert (str);

Does the CSS implement multiple lines beyond the display ellipsis?