Keep space line break style

The <pre> element can define preformatted text. The text enclosed in the pre element usually retains spaces and line breaks. The text will also be rendered as a monospaced font. 
 
The problem of content wrapping in <pre> (compatible with multiple browsers): 
pre { 
white -space: pre- wrap; 
white -space: -moz-pre- wrap; 
white -space: -pre- wrap; 
white -space : -o-pre- wrap;
 * word-wrap: break - word;
 * white- space: normal;   
}