<style type="text/css">textarea {background-image:url(ใส่Urlของภาพ);border-style: inset;color:#ffffff

;height:200px;width:150px; }</style>

<style type="text/css">

textarea { height:200px !important; }

ตัวอย่าง http://pixserv.clipmass.com/upload/picture/full/1aa2f9abc100acbc88154abed8b9c847.gif