.button-bar {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;

    /* offsets spacing set by .button-bar > * */
    margin: -5px;
}

.button-bar > * {
    flex-grow: 1;

    /* sets spacing between elements */
    margin: 5px;
}

/* aid-button may exist in a form */
.button-bar > * > aid-button {
    margin: 0;
}

/* reset aid-button:last-child margin when in button-bar */
.button-bar > aid-button:last-child {
    margin: 5px;
}

.button-bar aid-button {
    display: block;
    width: auto;
    min-width: 150px;
}


.button-bar aid-button button {
    box-sizing: border-box;
    padding-left: 5px;
    padding-right: 5px;
}

@media screen and (max-width: 400px) {
    .button-bar{
        flex-direction: column;
    }

    .button-bar aid-button {
        max-width: initial;
    }
}