.tabelalinks {
font-family: Arial, Helvetica, sans-serif;
font-size: 10px;
font-style: italic;
line-height: normal;
color: #FFFFFF;
background-color: #0066CC;
border: thin solid #CCCCCC;
text-align: center;
}
.tabelacentro {
background-image: url(imagem1.jpg);
background-position: center center;
background-repeat: no-repeat;
background-color: #006699;
}
.tabelassignos {
background-position: center center;
}
.tabelasigno {
background-color: #006699;
}