#1、textarea文本域HTML代码```HTML.mian-textarea{width:388px;height:198px;background:#FFFFFF;border:1pxsolid#CCCCCC;padding:16px;}.mian-textarea-word{height:22px;line-height:22px;text-align:right;color:#999;font-size:14px;margin-top:23px;}.mian-textarea-wordspan{fo