Makes Gitlab CI job log follow light theme preference, and removes ugly and unnecessary spacing.

gitlab_better_CI_log.user.css

/* ==UserStyle==
@name           Slightly more readable Gitlab CI job log
@namespace      github.com/openstyles/stylus
@version        0.3
@description    Enforces light color scheme preference, and reduces spacing between log lines.
@author         vctls
@homepageURL    https://gist.github.com/vctls/fee75998f5c4671be0e531b0731d7c73/edit
@downloadURL    https://gist.github.com/vctls/fee75998f5c4671be0e531b0731d7c73/raw
@updateURL      https://gist.github.com/vctls/fee75998f5c4671be0e531b0731d7c73/raw
==/UserStyle== */

@-moz-document domain("gitlab.com") {
    @media (prefers-color-scheme: light) {
        .job-log {
            filter: invert(1) hue-rotate(180deg);
        }
    }
    .build-page .term-bg-red {
        background-color: unset !important;
        color: #ff7e7e;
    }
    .log-line {
        padding: unset;
        line-height: normal !important;
        min-height: unset !important;
    }
    .log-line > span {
        display: inline-block;
        word-break: break-all;
    }
    .line-number {
        font-size: unset;
    }
    .build-page .top-bar {
        z-index: 1;
    }
}