.txt         { font-family: Verdana; font-size: 8 pt; border: 1px solid #999999; 
               background-image: url('../imagem/fdo_txt.gif'); 
               background-repeat: no-repeat; background-attachment: fixed; height: 18 }

.txtG         { font-family: Verdana; font-size: 8 pt; border: 1px solid #999999; 
               background-image: url('../imagem/fdo_txt.gif'); 
               background-repeat: no-repeat; background-attachment: fixed; }