.dhm-hotspot-wrapper {
    position: relative;
}

.dhm-hotspot {
    width: 24px;
    height: 24px;
    background: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 0 4px rgba(0,0,0,0.3);
    position: absolute;
    z-index: 10;
    transition: transform 0.2s;
}

.dhm-hotspot:hover {
    transform: scale(1.2);
}