.element {
    margin: 5px 0;
}

.element > div {
    margin: auto 0;
    width: auto;
    font-size: 20px;
    font-weight: 600;
}

.element > div:nth-of-type(n+2) {
    margin-left: 10px;
}

@media screen and (max-device-width:770px) {
    .select1 {
        width: 100%;
    }
    #calendar_2 {
        margin-top: 5px;
        width: 100%;
    }
}


/*.element > div:nth-of-type(n+2) {
    margin-left: 5px;
}*/