.flex-kontejner {
    display: flex;
    flex-direction: column;
    height: 100px;
    width: 100%;
}
.jidelak {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    margin-top: 50px;
}
@media (min-width: 768px) {
    .flex-kontejner {
        height: auto;
        flex-direction: row;
    }
}