body { font-family: sans-serif; font-size: 14px ; color: blue ; text-align: justify ; background-color: gray }
h1, h2, h3, h4, h5 { color: navy }
ul { list-style-type: square }
div.comentario { color: blue ; text-align: center; font-size: 11px }

#C11 { text-align: left ; background-color: gray }
#C21 { background-color: gray }
#C31 { font: 9px sans-serif ; color: black ; background-color: gray }
#C23 { background-color: white }