HackerNews: Hide karma and comment score by airstrike

/* ==UserStyle==
@name           HackerNews: hide karma and comment score
@namespace      github.com/airstrike
@version        1.0.0
@description    Hide karma and comment score on HN
@author         Andy Terra (airstrike)
==/UserStyle== */

@-moz-document domain("news.ycombinator.com") {
    /* Hide karma and points on replies */
    span.pagetop #karma, span.comhead span.score {
        visibility: hidden;
        position: relative;
        display: inline-block;
        height: 10px !important;
        overflow: hidden;
    }
    span.pagetop #karma {
        width: 0.8rem !important;
    }
    span.comhead span.score {
        width: 0.8rem !important;
    }
    span.pagetop #karma::before, span.comhead span.score::before {
        content: "•••";
        visibility: visible;
        overflow: hidden;
        opacity: 0.8;
        font-family: Helvetica, Arial, sans-serif !important;
    }
}