body {
    margin: 0;
    padding: 0;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    text-align: center; /* hack para o IE */
}

#tudo {
    width: 600px;
    margin: 0 auto;
    margin-top: 25px;
    border: 1px solid rgba(0, 0, 0, .1);
    border-radius: 0 !important;
    -webkit-box-shadow: 0 1px 0 rgba(0, 0, 0, .1);
    -moz-box-shadow: 0 1px 0 rgba(0, 0, 0, .1);
    box-shadow: 0 1px 0 rgba(0, 0, 0, .1);
    /*text-align: left;*/
}

#conteudo {
    padding: 15px 80px 30px;
    background-color: #fff;
}

.input-group-addon {
    min-width: 90px;
    text-align: left;
}