Colored textarea  textarea{ background: #HexNumbersHere; color: #TextHexHere; }  
Background imaged textarea  textarea{ background-image: url(’http://www.domain.ext/image.jpg’); color: #TextHexHere; }
Color change when hovered  textarea:hover{ background: #HexNumbersHere; color: #TextHexHere; }
Image change when hovered  textarea:hover{ background-image: url(’http://www.domain.ext/image.jpg’); color: #TextHexHere; } 
Basic Textarea Code [Colored background]  textarea{background-color: #HEX; color: #TextHexHere; width: ###px; height: ###px; font-size: #pt; border: #px solid #HEX; }