.viewer .tabSelected,
.viewer .tabContents        { background-color: [[ColorPalette::Background]]; } /* use inherit? returns "border-bottom" to tabSelected (actually it is __) for some reason */
.viewer .tabSelected:hover    { color: inherit; } /* inconsistent: either switch pointer back to ~normal and make sure it doesn't do a thing or ... */

.tabset { padding-left: 0; }
.tab {
    display: inline-block;
    white-space: pre-wrap;
    position: relative;
    bottom: -1px;
    /*z-index: 1;*/

    padding: 0.2em 0.5em;
    margin-left: 0;
    margin-right: 0.25em;
}
.tab:last-child { margin-right: 0; }

/* one-line tabsMore, tested in FF, Chrome, Vivaldi, Edge, IE (for english locale) */
#sidebar                  { width: 17.1em; }
#sidebarTabs .tabContents { width: 16.2em; }