.range-wrap {
    position: relative;
    margin: 0 auto 3rem;
}

.range {
    width: 100%;
}

.bubble {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

    .bubble::after {
        content: "";
        position: absolute;
        top: -1px;
        left: 50%;
    }