textarea去掉边框
<textarea style="BORDER-BOTTOM: 0px solid; BORDER-LEFT: 0px solid; BORDER-RIGHT: 0px solid; BORDER-TOP: 0px solid;height:220px;">${systemNotice.content }</textarea>
<textarea style="BORDER-BOTTOM: 0px solid; BORDER-LEFT: 0px solid; BORDER-RIGHT: 0px solid; BORDER-TOP: 0px solid;height:220px;">${systemNotice.content }</textarea>