設置p標簽自動換行

< body >

     < p  style = "width:20px;height:100px;background-color:#069; word-wrap: break-word;" >111111111111111111111111111111111111</ p >

     < p  style = "width:20px;height:100px;background-color:#069;" >你好你好你好你好你好你好你好你好你好你好</ p >

</ body >