给评论框加背景图片

div.commentform textarea{
width: 2000px;
height: 400px;
font-size: 13px;
border: 1px solid #ccc;
font-family: 'PingFang SC','Helvetica Neue','Helvetica','Arial',sans-serif;
background: url(https://img2018.cnblogs.com/blog/1392129/201903/1392129-20190327164835929-1650007466.jpg
) fixed;
border-top: 0px;
border-left: 0;
border-right: 0;
border-bottom: 0;

}