Tooltip styling

tooltip.component.scss

:host {
    --tip-content-padding: 15px;
    --tip-content-width: 250px;
    --tip-content-half-width: calc(var(--tip-content-width) / 2);
    --tip-content-view-spacing: 5px;
    --tip-pointer-height: 44px;
    --tip-pointer-half-height: calc(var(--tip-pointer-height) / 2);
    --tip-pointer-top: calc(100% + 0.414 * var(--tip-pointer-half-height));  /* 0.414 = trigonometric factor cause by the rotation rotate(-45deg) */
}

.tooltip {
    position: relative;
    width: fit-content; /* takes the width of the wrapped content, NOTE that this does not take into account content with absolute position */
    display: table; /* fixes IE "missing fit-content" issue */
}

/* START tip-pointer */
.tooltip:hover::before {
    position: absolute;
    top: 100%;
    left: calc(50% - var(--tip-pointer-half-height));
    content: " ";
    height: 0;
    width: 0;

    border: var(--tip-pointer-half-height) solid transparent;
}

.tooltip:hover::after {
    top: var(--tip-pointer-top);
    left: calc(50% - var(--tip-pointer-half-height));
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;

    border: var(--tip-pointer-half-height) solid transparent;
    border-top-color: #fff;
    border-right-color: #fff;
    box-shadow: 1px -1px 0 0 rgba(0, 0, 0, 0.1);

    transform-origin: center;
    transform: rotate(-45deg);
}
/* END tip-pointer */

.tooltip__label {
    width: fit-content;
    display: table;
    cursor: help;
}

.tooltip__tip {
    width: 50%;
    display: none;
    position: absolute;
    top: calc(var(--tip-pointer-top) + var(--tip-pointer-half-height));
    left: 50%;
}

.tooltip:hover .tooltip__tip {
    display: block;
}

.tooltip__tip__content {
    background-color: white;
    box-shadow: 0 2px 9px 0 rgba(0, 0, 0, 0.3);
    width: var(--tip-content-width);
    padding: var(--tip-content-padding);
    white-space: normal; /* allow for paragraphs to take multiple lines */
    position: absolute;
    left: calc(0px - var(--tip-content-half-width) - var(--tip-content-padding));
}

.tooltip__tip__content--fixto-left {
    position: fixed;
    left: var(--tip-content-view-spacing);
    right: auto;
}

.tooltip__tip__content--fixto-right {
    position: fixed;
    left: auto;
    right: var(--tip-content-view-spacing);
}