body {background-image: url("objetos1/fondo.jpg"); backround-repeat: no-repeat;text-align:center }
#global {width:800px ; margin: 4px auto }
.centrado {text-align:center ; font-size: 25px }
#contenido {background-image: url("objetos1/fondo2.jpg") ; width: 800px}
#contenido h1 {text-align:center; font-size: 26px; text-decoration:underline; color:brown;padding-top:10px;margin-bottom:15px}
#pie {background-color:white ;height:20px; width:800; padding:15px; text-decoration:underline;font-size:20px; border-top: 1px brown solid; margin-top:15px}
#pieuno {background-image: url("objetos1/fondo2.jpg"); float:left; width:300px; margin-left:220px; padding:15px}
#piedos{background-image: url("objetos1/fondo.jpg"); float:left ;width:200px;margin-top:45px;font-size:18px}
#pietres {background-image: url("objetos1/fondo2.jpg"); float:left; width:300px; padding:15px}

a{color:brown; text-decoration: none; display:block ;text-align:center; margin-top: 50px;width:80}
a:link {}
a:visited {}
a:hover { color:red ; text-decoration:underline ; background-image: url("objetos1/fondo.jpg")}
a:active {}