各种浏览器的自动换行问题

white-space: pre-wrap;       /* css-3 */
 white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
 white-space: -pre-wrap;      /* Opera 4-6 */
 white-space: -o-pre-wrap;    /* Opera 7 */
 word-wrap: break-word;       /* Internet Explorer 5.5+ */

<pre style="margin:0px;white-space: -o-pre-wrap;white-space: -pre-wrap;white-space: -moz-pre-wrap;white-space: pre-wrap;word-wrap: break-word">