Force newline characters in Firefox based on javascript_javascript skills

Effect demonstration code:

<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> <div id="break"> If there were less sympathy in the world, there would be less trouble in the world. (O. Wilde) </div>
[Ctrl A Select all Note: If you need to introduce external Js, you need to refresh to execute

]

CSS control forced line break/force Line break

Force no line break
div{
white-space:nowrap;
}

Automatic line break
div{
word-wrap: break- word;
word-break: normal;
}

Force English word line break
div{
word-break:break-all; }<script> function toBreakWord(intLen){ var obj=document.getElementById("ff"); var strContent=obj.innerHTML; var strTemp=""; while(strContent.length>intLen){ strTemp+=strContent.substr(0,intLen)+" "; strContent=strContent.substr(intLen,strContent.length); } strTemp+=" "+strContent; obj.innerHTML=strTemp; } if(document.getElementById && !document.all) toBreakWord(37) </script>