1. If you want the space in how are you valid: You need to add word-Spacing: 20px;
2. whether the text in the DIV needs to overflow or hide after the width of the DIV is fixed: You need to set text-overflow: ellipsis; overflow: hidden; text-overflow: ellipsis; overflow: visible;
3. Whether the blank content in the text is valid: white-space: nowrap; // a line of white-space: Pre; // wrap only when a blank line is entered
4. Wrap the word-break: Break-all according to the attribute of the word; // The line feed is based on the width, regardless of whether the word is complete or not.
5. This line feed is similar to the above: Word-wrap: Break-word;