.tooltip {	
    position: absolute;		
    width: 150px;	
}

.container {
    max-width: 90%;
    margin: 5% auto 15% auto;
    padding: 0px;
    background-color: transparent;
    text-align: center;
}

#bubblesContainer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

#bubblesContainer > div {
    margin-bottom: 75px;
}

.axis {
    color: whitesmoke;
    font-size: 14px;
    pointer-events: none;
}

.period-label {
    text-align: center;
    color: white;
    font-size: var(--font-medium);
    font-weight: bold;
    margin-bottom: 10px;
}

/* ===== mobile overrides ===== */
@media (max-width: 480px) {

    .container {
        margin: 5% auto 50vh auto;
    }

    .period-label {
        font-size: 22px;
    }
}