.imagetip {
    position: relative;
    width: 100%;
}

.imagetip__image {
    display: block;
    width: 100%;
    height: auto;
    pointer-events: none;
    -webkit-user-select: none;
    user-select: none;
}

.imagetip__tip {
    position: absolute;
    width: 1px;
    height: 1px;
    top: 0; /* default position */
    left: 0; /* default position */
    z-index: 20;
    cursor: move;
}

.imagetip__tip::before {
    content: '';
    display: block;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border-radius: 24px;
    background: #fff;
    background: rgba(255,255,255,0.8);
    border: 1px solid #000;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

.imagetip__tip::after {
    content: '';
    display: block;
    width: 64px;
    height: 64px;
    margin: -40px 0 0 -32px;
    border-radius: 32px;
    background: rgba(0,0,0,0.1);
    border: 1px solid #fff;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
}