input.invalid {
    background-color: #ffdddd
}

select.invalid {
    background-color: #ffdddd
}

textarea.invalid {
    background-color: #ffdddd
}

.tabbb {
    display: none
}

.step {
    height: 15px;
    width: 15px;
    margin: 0 2px;
    background-color: #bbbbbb;
    border: none;
    border-radius: 50%;
    display: inline-block;
    opacity: 0.5
}

.step.active {
    opacity: 1;
    background-color: #4CAF50;
}

.step.finish {
    background-color: #4CAF50
}

.all-steps {
    text-align: center;
    margin-top: 30px;
    margin-bottom: 30px
}