h2 {
    padding: 16px;
}

.white_out {
    color: var(--primary);
    background: var(--primary);
    transition: background-color 0.3s linear, color 0.3s linear;
}

.white_out:hover {
    color: var(--text-default);
    background: var(--bg-primary);
    transition: background-color  0.5s linear, color  0.5s linear;
}