搞基百科 - 有码的百科全书

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+ */
}

出自: Making preformated text wrap in CSS3, Mozilla, Opera and IE

button{
zoom:expression(
this.style.zoom=1,
onmouseover=function(){
this.className=this.className+'_hover';
},
onmouseout=function(){
this.className=this.className.replace('_hover','');
}
);
}