body { color: #000; font-size: small; font-family: "trebuchet ms", sans-serif; background-color: #FFF }
img { border: 0 }
#gu { display: block; margin: 10px auto }

#art7 h4 { margin: 5px 2px 2px 2px }
#art7 p { margin: 2px }
#art7 ol { margin: 2px; list-style-type: decimal }
#art7 ol ol { margin: 2px; list-style-type: lower-alpha }