pre浏览器不折行问题解决

pre {
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+ */
}