Шаблон:DevToolTip/styles.css

.dev-tooltip {
    position: relative;
    display: inline
}

.dev-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
}

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