CSS3手册

word-wrap

边框(Border): Border-color; Border-image; Border-radius; box-shadow

背景(Background): background-origin; background-clip; Background-size; Multiple backgrounds

颜色(Color): HSL colors; HSLA colors; opacity; RGBA colors

文本(Text effects): text-shadow; text-overflow; word-wrap

用户界面(User-interface): box-sizing; resize; outline; outline-width; outline-style; outline-offset; outline-color; nav-index; nav-up; nav-right; nav-down; nav-left

基础盒模型(Basic box model): overflow; overflow-x; overflow-y

内容(Generated Content): content

其它模块(Other modules): media queries; Speech; columns; column-width; column-span; column-rule; column-rule-color; column-rule-width; column-rule-style; column-gap; column-fill; column-count; column-break-before; column-break-after; @font-face

选择器(selectors): 子串匹配的属性选择符 E[att^="val"]; 子串匹配的属性选择符 E[att$="val"]; 子串匹配的属性选择符 E[att*="val"]; 结构性伪类 E:root; 结构性伪类 E:nth-child(n); 结构性伪类 E:nth-last-child(n); 结构性伪类 E:nth-of-type(n); 结构性伪类E:nth-last-of-type(n); 结构性伪类 E:last-child; 结构性伪类 E:first-of-type; 结构性伪类 E:only-child; 结构性伪类 E:only-of-type; 结构性伪类 E:empty; UI元素状态伪类 E:checked; UI元素状态伪类 E:enabled; UI元素状态伪类 E:disabled; UI元素状态伪类 E::selection; 否定伪类 E:not(s); 目标伪类 E:target; 通用兄弟元素选择器 E ~ F

语法：

word-wrap ： normal | break-word

取值：

normal：: 控制连续文本换行。
break-word：: 内容将在边界内换行。如果需要，词内换行（word-break）也会发生。

说明：

设置或检索当当前行超过指定容器的边界时是否断开转行。

兼容性：

类型	Internet Explorer	Firefox	Chrome	Opera	Safari
版本	(√)IE6	(×)Firefox 2.0	(√)Chrome 1.0.x	(×)Opera 9.63	(√)Safari 3.1
	(√)IE7	(×)Firefox 3.0	(√)Chrome 2.0.x		(√)Safari 4
	(√)IE8	(√)Firefox 3.5

示例：