.collaborative-selection-wrapper {
    position: fixed;
    z-index: 1;
}

.collaborative-selection {
    width: 2px;
    background-color: red;
    height: 12pt;
}

.collaborative-selection-tooltip {
    display: none;
    position: relative;
    top: -24pt;
    padding: 0 3px;
    background-color: red;
}