Cabecera: header

#caja .cabecera h1{ font-family: Comic Sans; } --> 0,1,1,1

#caja header h1{ font-family:Times; } --> 0,1,0,1,1

header h1{ font-family: calibri; } --> 0,0,1,1

h1{ font-family: verdana; } --> 0,0,0,1,1

.cabecera h1{ font-family: arial; } --> 0,0,0,1