.comment-container{position:fixed;top:0;right:0;bottom:0;left:0;z-index:4;background:#fff}.comment-container textarea{background:#fff;width:100%;height:100%;border:0;resize:none;line-height:1.5;padding:10px;outline:none;vertical-align:middle;-webkit-box-sizing:border-box;box-sizing:border-box}