uBlock/src/css/settings.css

.synopsis {
    font-size: 90%;
    }
[href="advanced-settings.html"] {
    display: none;
    }
body.advancedUser [href="advanced-settings.html"] {
    display: inline-flex;
    }
#localData {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    white-space: nowrap;
    }
#localData > div {
    flex-grow: 1;
    margin-bottom: 1em;
    }
#localData > div:last-of-type {
    display: flex;
    flex-direction: column;
    flex-grow: 0;
    flex-shrink: 0;
    }
#localData > div:last-of-type > button {
    margin-bottom: 0.5em;
    }

/* small-screen devices */
:root.mobile #localData {
    flex-direction: column;
    white-space: unset;
    }