li.wcm-tag.wcm-colouredCollapsed {
    height: 16px;
    width: 16px;
    border-radius: 50%;

    font-size: 0;

    border: solid 1px;
    border-color: transparent;
    display: inline-block;
    padding: 5px;
    margin: 2px;
    margin-bottom: 10px;
    position: relative;
    
}
li.wcm-tag.wcm-colouredCollapsed:hover {
    border: solid 1px;
    border-color: transparent;
    display: inline-block;
    padding: 5px;
    margin: 2px;
    margin-bottom: 10px;
    width: 16px;
    height: 16px;
    position: relative;
    border: solid 1px;
    cursor: help;
}

li.wcm-tag.wcm-colouredCollapsed:hover .wcm-tooltip {
    display: inline-block;
    border: solid 1px;
    z-index: 1;
}

.wcm-tooltip {
    display: none;
    position: absolute;
    top: 25px;
    padding: 4px 10px;
    border-radius: 5px;
    white-space: nowrap;
    font-size: 12px;
}