This paragraph has a great many s p a c e s with its textual content, but their collapse will not prevent line wrapping or line breaking.
注释:当 white-space 属性设置为 pre-line 时,浏览器会保留换行符,并允许自动换行,但是会合并空白符,这是与 pre-wrap 值的不同之处。
结果: