效果演示代碼: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>firefox-break-word</title> <style type="text/css"> <!--/*--><![CDATA[/*><!--*/ #break {border:1px solid #ccc;padding:.4em .8em;width:200px;word-wrap:break-word;word-break:break-all;} /*]]>*/--> </style> <meta name="viewport" content="width=device-width, initial-scale=1.0"></head> <body> If there were less sympathy in the world, there would be less trouble in the world. ( O. Wilde ) </body> </html> [Ctrl+A 全選 注:如需引入外部Js需刷新才能執行]CSS控制強制換行/強制換行 強制不換行 div{ white-space:nowrap; } 自動換行 div{ word-wrap: break-word; word-break: normal; } 強制英文單詞斷行 div{ word-break:break-all; }