.t-mapa-web {
  border-collapse: collapse;
  margin-left: auto; 
  margin-right: auto;
}

#t-principal .t-mapa-web td {
  /*border: 1px dashed black;*/
  vertical-align: bottom;
  text-align: left;
}

#t-principal .t-mapa-web td.caixa {
  padding: 0.2ex 1em 0.2ex 1em;
  border: 2px solid #800000; 
  text-align: center;
  vertical-align: middle;
  height: 3em;
}

#t-principal .t-mapa-web td.campana {
    border-right: 2px solid #800000; 
    border-top: 2px solid #800000; 
    border-left: 2px solid #800000; 
}

#t-principal .t-mapa-web td.petita {
    width: 1em;
}

#t-principal .t-mapa-web td.petita2 {
    width: 1em;
    border-top: 2px solid #800000; 
}

#t-principal .t-mapa-web td.m-petita {
    width: .5em;
}

#t-principal .t-mapa-web td.m2 {
    width: 2em;
}

#t-principal .t-mapa-web td.L {
    width: 1em; 
    height: 3em;
    border-left: 2px solid #800000; 
    border-bottom: 2px solid #800000; 
}