MediaWiki:MobileUI.css

.mobile-ui-icon-puzzle:before {
    background-image:
        linear-gradient(transparent, transparent),
        url("https://images.2ch.me/2/26/パズルピースのアイコン.svg");
}

#mobile-ui-right-menu-button:after {
    content: "ログインメニュー";
}

.mobile-ui-block {
    display: block !important;
}

.mobile-ui-black {
    color: black !important;
}

.mobile-ui-bold {
    font-weight: bold !important;
}

.mobile-ui-pb-0 {
    padding-bottom: 0 !important;
}

.mobile-ui-not-article .mobile-ui-only-article,
.mobile-ui-hidden {
    display: none !important;
}

.secondary-navigation-enabled {
    overflow: hidden;
    touch-action: none;
}

@media screen and (min-width: 720px) {
    #mobile-ui-page-right {
        min-width: 320px;
    }
}

#mobile-ui-page-right {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    min-width: 275px;
    max-width: 80%;
    z-index: 2;
    overflow-y: auto;
    background-color: #eaecf0;
    transform: translate(100%,0);
}

.animations #mobile-ui-page-right {
    transition: transform 0.25s ease-in-out;
}

.animations.secondary-navigation-enabled #mobile-ui-page-right {
    transform: translate(0,0);
}

#mobile-ui-page-right ul {
    padding-bottom: 22px;
}

#mobile-ui-page-right ul li:first-child {
    border-top: 0;
}

#mobile-ui-page-right ul li {
    background-color: #ffffff;
    position: relative;
    border-top: 1px solid #eaecf0;
    margin-top: -1px;
}

#mobile-ui-page-right ul li a:visited,
#mobile-ui-page-right ul li a:active {
    color: #54595d;
}

#mobile-ui-page-right ul li a {
    color: #54595d;
    display: block;
    max-width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    padding: 12px 10px 12px 15px;
}

#mobile-ui-page-right ul li a span {
    font-size: 0.875em;
    font-weight: bold;
    vertical-align: middle;
}