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

.campos_formulario
{
font-family: Tahoma, Verdana, Arial;
font-size: 11px;
color: dimgray;
background-color: whitesmoke;
border: 1px solid black;
}

.botao_enviar
{
font-family: Tahoma, Verdana, Arial;
font-size: 11px;
color: black;
background-color: gainsboro;
}