.sidebar-nav {
    margin-top: 20px;
    padding: 0;
    list-style: none;
}

.cutetooltip {
    position: relative;
    display: inline-block;
}

.cutetooltip .cutetooltiptext {
    visibility: hidden;
    width: 4em;
    color: black;
    background: white;
    text-align: center;
    border: 1px solid black;
    border-radius: 10px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 110%;
    left: 50%;
    margin-left: -2.2em;
}

.cutetooltip .cutetooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: black transparent transparent transparent;
}

.cutetooltip:hover .cutetooltiptext {
    visibility: visible;
}