1. word-wrap:break-word;
The content will wrap within the boundary. It is only used for block objects. If you want to use it for inline objects, you must set height, width or display:block or position:absolute.
2. word-break:break-all;
is used to handle word breaks. (Note the comparison with the first attribute), the entire word will be removed
3. white-space:nowrap;
is used to process the white space within the element , only displayed in one line.
4. text-overflow:ellipsis;
The excess part displays ellipses.