a {
    text-decoration: none !important;
}

input.not_valid {
    border: 2px solid red;
}

input.valid {
    border: 2px solid green;
}

.section_pass {
    background-color: #68db67;
}

.section_ready {
    background-color: #b7b7b7;
}

.section_off {
    background-color: #757575;
}


@media (min-width: 600px) {}