[tooltip] {
    position: relative;
}

[tooltip]::before,
[tooltip]::after {
    text-transform: none;
    font-size: .9em;
    line-height: 1;
    user-select: none;
    pointer-events: none;
    position: absolute;
    display: none;
    opacity: 0;
}

[tooltip]::before {
    content: '';
    border: 5px solid transparent;
    z-index: 1001;
}

[tooltip]::after {
    content: attr(tooltip);
    text-align: center;
    min-width: 3em;
    max-width: 21em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 1ch 1.5ch;
    border-radius: .3ch;
    box-shadow: 0 1em 2em -.5em rgba(0, 0, 0, 0.35);
    background: #2e3440;
    color: #fff;
    z-index: 1000;
}

[tooltip]:hover::before,
[tooltip]:hover::after,
[tooltip]:active::before,
[tooltip]:active::after {
    display: block;
}

[tooltip='']::before,
[tooltip='']::after {
    display: none !important;
}

[tooltip]:not([flow])::before,
[tooltip][flow^="up"]::before {
    bottom: 100%;
    border-bottom-width: 0;
    border-top-color: #2e3440;
}

[tooltip]:not([flow])::after,
[tooltip][flow^="up"]::after {
    bottom: calc(100% + 5px);
}

[tooltip]:not([flow])::before,
[tooltip]:not([flow])::after,
[tooltip][flow^="up"]::before,
[tooltip][flow^="up"]::after {
    left: 50%;
    transform: translate(-50%, -.5em);
}

[tooltip][flow^="down"]::before {
    top: 100%;
    border-top-width: 0;
    border-bottom-color: #2e3440;
}

[tooltip][flow^="down"]::after {
    top: calc(100% + 5px);
}

[tooltip][flow^="down"]::before,
[tooltip][flow^="down"]::after {
    left: 50%;
    transform: translate(-50%, .5em);
}

[tooltip][flow^="left"]::before {
    top: 50%;
    border-right-width: 0;
    border-left-color: #2e3440;
    left: calc(0em - 5px);
    transform: translate(-.5em, -50%);
}

[tooltip][flow^="left"]::after {
    top: 50%;
    right: calc(100% + 5px);
    transform: translate(-.5em, -50%);
}

[tooltip][flow^="right"]::before {
    top: 50%;
    border-left-width: 0;
    border-right-color: #2e3440;
    right: calc(0em - 5px);
    transform: translate(.5em, -50%);
}

[tooltip][flow^="right"]::after {
    top: 50%;
    left: calc(100% + 5px);
    transform: translate(.5em, -50%);
}

@keyframes tooltips-vert {
    to {
        opacity: .9;
        transform: translate(-50%, 0);
    }
}

@keyframes tooltips-horz {
    to {
        opacity: .9;
        transform: translate(0, -50%);
    }
}

[tooltip]:not([flow]):hover::before,
[tooltip]:not([flow]):hover::after,
[tooltip][flow^="up"]:hover::before,
[tooltip][flow^="up"]:hover::after,
[tooltip][flow^="down"]:hover::before,
[tooltip][flow^="down"]:hover::after {
    animation: tooltips-vert 300ms ease-out forwards;
}

[tooltip][flow^="left"]:hover::before,
[tooltip][flow^="left"]:hover::after,
[tooltip][flow^="right"]:hover::before,
[tooltip][flow^="right"]:hover::after {
    animation: tooltips-horz 300ms ease-out forwards;
}