html, body
{
  height: 100%;
}

.letra10 { font-family: Tahoma; font-size: 10px; }
.letra11 { font-family: Tahoma; font-size: 12px; }
.letra12 { font-family: Tahoma; font-size: 12px; }
.letra13 { font-family: Tahoma; font-size: 13px; }
.letra14 { font-family: Tahoma; font-size: 14px; }
.letra15 { font-family: Tahoma; font-size: 15px; }
.letra18 { font-family: Tahoma; font-size: 18px; }

.branco { color: #ffffff }
.preto { color: #000000 }
.cinza { color: #b9b6b6 }
.amarelo { color: #ffff00 }

A.linkmenu{text-decoration:none}
a.linkmenu:link {color:#ffffff; text-decoration: none}
a.linkmenu:visited {color:#ffffff; text-decoration: none}
a.linkmenu:hover {color:#ffffff; text-decoration: underline}
a.linkmenu:active {color:#ffffff; text-decoration: underline}

A {text-decoration:none}
a:link {text-decoration: none}
a:visited {text-decoration: none}
a:hover {text-decoration: underline}
a:active {text-decoration: none}