wikimedia/mediawiki-extensions-Translate

.tes-entity-selector {
    .tes-error-label {
        background: #fee7e6;
        color: #b32424;
    }

    .tes-optgroup-label {
        font-size: 1.1em;
        font-weight: bold;
    }

    .tes-message-subtext {
        position: absolute;
        top: 10px;
        right: 10px;
        font-size: 0.9em;
        color: #717171 !important;
    }

    .oo-ui-menuOptionWidget {
        position: relative;
    }
}