uBlock/src/css/settings.css

body {
    border: 0;
    font: 16px/24px sans-serif;
    margin: 0;
    padding: 0;
    }
hr {
    border: 0;
    border-top: 1px solid #ccc;
    margin: 1.5em 0;
    }
.body {
    color: #20123a;
    margin-top: 1em;
    }
.entries {
    margin: 0.5em 0;
    }
.section {
    font-size: large;
    font-weight: bold;
    margin-top: 0.75em;
    }
.synopsis {
    font-size: smaller;
    }
.entry {
    align-items: baseline;
    display: flex;
    margin: 0.5em 0;
    }
.entry > * {
    margin-inline-end: 0.5em;
    -webkit-margin-end: 0.5em;
    }
.entry > input[type="checkbox"] {
    align-self: center;
    }
#advanced-user-enabled ~ a.fa {
    display: none;
    }
body.advancedUser #advanced-user-enabled ~ a.fa {
    display: inline;
    }