Шаблон:Tooltip/styles.css

.tooltip {
    position: relative;
    display: inline
}

.tooltiptext {
    position: absolute;
    display: initial;
    z-index: 99999;
    width: 300px;
    left: -100px;
    top: 42px;
    padding: 5px;
    pointer-events: none;
    visibility: hidden;
    opacity: 0;
    white-space: normal;
    text-align: left;
    transition: all 0.2s;
    border: 1px solid #465298;
    background-color: #27272E
}

.tooltip:hover>.tooltiptext {
    visibility: visible;
    opacity: 0.98
}

@media screen and (max-width: 850px) {
    .tooltip {
        position: static
    }
 
    .tooltiptext {
    	box-shadow: 0px 0px 100vw 100vh rgba(0, 0, 0, 0.6);
        position: fixed;
        width: 80vw;
        top: 40vh;
        left: 0;
        margin: 0 auto;
        right: 0
    }
}