word-break 屬性指定單詞在到達行尾時應如何中斷。
p.a { word-break: break-all; }
word-break: normal|break-all|keep-all|break-word|initial|inherit;
屬性值：
| Value | Description |
|---|---|
| normal | 默認值。 使用默認換行符規則 |
| break-all | 按div容器長度進行換行 |
| keep-all | Word breaks should not be used for Chinese/Japanese/Korean (CJK) text. Non-CJK text behavior is the same as value "normal" |
| break-word | To prevent overflow, word may be broken at arbitrary points |
| initial | Sets this property to its default value. Read about initial |
| inherit | Inherits this property from its parent element. Read about inherit |
