reddit.css

/* ==UserStyle==
@name           Reddit Tweaks
@namespace      reddit.com
@version        1.0.0
@description    Hides a bunch of addictive Reddit stuff.
@author         konsuko
==/UserStyle== */

@-moz-document domain("old.reddit.com") {
    html {
        display: none;
    }
}

@-moz-document domain("reddit.com") {
    html {
        display: none;
    }
}

/*@-moz-document domain("reddit.com"), url("https://www.reddit.com/r/all/"), url("https://www.reddit.com/r/popular/") {*/
@document regexp("https://www\.reddit\.com/.*") {
    /* This should hide the ALL, POPULAR and RANDOM Buttons on the top bar */
    /*.sr-list .flat-list:first-of-type li:nth-child(2) {*/
    /*display: none;*/
    /*}*/
    /*.sr-list .flat-list:first-of-type li:nth-child(3) {*/
    /*display: none;*/
    /*}*/
    /*.sr-list .flat-list:first-of-type li:nth-child(4) {*/
    /*display: none;*/
    /*}*/
    /* This hides all feeds/listings */

    body {
        display: none;
    }

    #sr-header-area {
        display: none;
    }

    [data-context="listing"] {
        display: none;
    }
}