div#centro {width:540px; text-align:left;}

div#actividades{background:#047fc1; background-image:url("../imagenes/cabeceras/cab1_6.jpg"); background-repeat:no-repeat; padding:30px 0 0 0;}
div#actividades2{background-image:url("../imagenes/abajo_amp.jpg"); background-repeat:no-repeat; padding:23px 0 0 0;}

.contenido {background: #eef0f2; border:0; margin:1px 2px 0 2px; padding: 5px;}
.contenido a {color: #6f7d87; text-decoration: none;} 
.contenido a:hover {color: #047fc1;}