Review existing css rules and duplicate declarations
(Report generated via https://gist.github.com/jdlrobson/05c66707da88f9325a6b)
{#page-actions} AND {.client-js nav .secondary-action} share 5 declarations - border: none - border-bottom: none - position: absolute - right: 0 - top: 0 {#page-actions} AND {.content-overlay} share 4 declarations - padding-right: 16px - position: absolute - right: 0 - top: 0 {.overlay .content-header} AND {.overlay .panel} share 4 declarations - border-bottom-style: solid - border-bottom-width: 1px - padding-left: 16px - padding-right: 16px {#mw-mf-diffview #mw-mf-userinfo} AND {.content-overlay} share 4 declarations - left: 0 - padding-bottom: 1em - padding-top: 1em - right: 0 {.overlay .cleanup li .issue-notice:before} AND {.page-list .list-thumb,.topic-title-list .list-thumb,.site-link-list .list-thumb} share 4 declarations - height: 100% - left: 0 - position: absolute - top: 0 {.client-js nav .secondary-action} AND {.cloaked-element} share 4 declarations - bottom: 0 - position: absolute - right: 0 - top: 0 {#footer}, {.alpha .pre-content,.beta .pre-content} AND {.overlay .panel} share 4 declarations - padding-left: 3.35em - padding-left: 16px - padding-right: 3.35em - padding-right: 16px {.alpha #page-actions,.beta #page-actions} AND {.mw-mf-special #content_wrapper .content-header h2} share 4 declarations - border-bottom: none - font-size: 1.1em - padding-right: 0 - padding-top: 0 {.cloaked-element} AND {.content-overlay} share 4 declarations - left: 0 - position: absolute - right: 0 - top: 0 {.category-header li} AND {.page-header-bar li,.page-header-bar div} share 4 declarations - border-bottom: 1px solid #ddd - line-height: 1.5 - padding: 5px 0 0 - text-align: center {.client-js nav .secondary-action} AND {.notifications-overlay .user-button} share 4 declarations - padding-right: 0 - position: absolute - right: 0 - top: 0 {.category-header li a} AND {.mw-mf-watchlist-selector li a} share 4 declarations - border-bottom: 3px solid transparent - color: #555 - display: block - margin: 0 1px 0 0 {.alpha .drawer.quick-lookup .watch-this-article,.alpha .drawer.quick-lookup .cancel} AND {.alpha .drawer.references .cite .cancel,.beta .drawer.references .cite .cancel} share 4 declarations - cursor: pointer - padding: 1em 0 - position: absolute - top: 20px {.category-header li}, {.content .thumbborder}, {.content table.wikitable}, {.content table.wikitable > tr > th,.content table.wikitable > tr > th,.content table.wikitable > * > tr > th,.content table.wikitable > * > tr > td}, {.header .search}, {.overlay .comment .wikitext-editor} AND {.warningbox} share 4 declarations - border-bottom-style: solid - border-bottom-width: 1px - border-left-style: solid - border-left-width: 1px {.alpha #content_wrapper .pre-content,.alpha #mw-mf-nearby,.beta #content_wrapper .pre-content,.beta #mw-mf-nearby} AND {.alpha .overlay-header-container .overlay-header,.alpha .overlay-content,.beta .overlay-header-container .overlay-header,.beta .overlay-content} share 3 declarations - margin: 0 auto - max-width: 1000px - padding: 0 3.35em {nav ul.hlist li} AND {nav ul.hlist li a} share 3 declarations - border: none - border-bottom: none - margin-left: 0 {.drawer .cancel} AND {.overlay .content .cancel} share 3 declarations - display: block - margin-left: auto - margin-right: auto {.content table} AND {.overlay .content .cancel} share 3 declarations - display: block - margin-bottom: 1em - margin-top: 1em {.category-header li} AND {.mw-mf-watchlist-selector li} share 3 declarations - border-left: 1px solid #ddd - display: inline-block - margin: 0 0 0 -1px {.mw-mf-cleanup} AND {.mw-mf-image-replacement} share 3 declarations - display: inline-block - padding-bottom: 10px - padding-top: 10px {.client-js nav .secondary-action} AND {.mw-mf-watchlist-selector li} share 3 declarations - border-bottom: none - border-left-style: solid - border-left-width: 1px {.alpha #page-actions,.beta #page-actions} AND {.mw-mf-special #content_wrapper .pre-content} share 3 declarations - border-bottom: none - padding-right: 0 - padding-top: 0 {.client-js nav .secondary-action} AND {.search-overlay input} share 3 declarations - border: none - border-bottom: none - padding-right: 0 {.client-js .search-box .search} AND {.mw-notification-area.error,.toast.error} share 3 declarations - background-repeat: no-repeat - border: none - border-bottom: none {.mw-mf-special #content_wrapper #section_0} AND {.mw-mf-special #content_wrapper .content-header h2} share 3 declarations - border-bottom: none - font-weight: bold - text-align: center {.alpha .header > .header-title} AND {.content-overlay} share 3 declarations - position: absolute - text-align: center - top: 0 {.client-js .toc-mobile} AND {.wikidata-infobox} share 3 declarations - margin-left: 0 - margin-right: 0 - position: relative {.alpha .drawer.quick-lookup .cancel} AND {.alpha .drawer.references .cite .cancel,.beta .drawer.references .cite .cancel} share 3 declarations - font-size: 0.8em - margin: -1em -1em -1em 0 - right: 20px {.alpha .drawer.references .cite .cancel,.beta .drawer.references .cite .cancel} AND {.alpha .mw-mf-cleanup,.beta .mw-mf-cleanup} share 3 declarations - font-size: 0.8em - padding-left: 0 - padding-right: 0 {.alpha .pre-content,.beta .pre-content} AND {.overlay .content-header} share 3 declarations - padding-left: 16px - padding-right: 16px - padding-top: 20px {.content table.infobox th,.content table.infobox td} AND {.content table.wikitable > tr > th,.content table.wikitable > tr > th,.content table.wikitable > * > tr > th,.content table.wikitable > * > tr > td} share 3 declarations - border-bottom-style: solid - border-bottom-width: 1px - padding: .2em {.content-overlay} AND {.notification-count} share 3 declarations - position: absolute - right: 0 - text-align: center {.overlay .panel} AND {.pre-content} share 3 declarations - padding-left: 16px - padding-right: 16px - padding-top: 12px {#footer} AND {.overlay .cleanup li .issue-notice} share 3 declarations - padding-left: 16px - padding-right: 16px - padding-top: 2em {.overlay .panel} AND {.pre-content #section_0} share 3 declarations - border-bottom-style: solid - border-bottom-width: 1px - padding-top: 12px {.alpha #page-actions,.beta #page-actions}, {.alpha #section_0,.beta #section_0}, {.mw-mf-special #content_wrapper .content-header h2}, {.mw-mf-special #content_wrapper .pre-content} AND {.search-overlay input} share 3 declarations - border-bottom: none - padding-bottom: 0 - padding-top: 0 {#page-actions}, {.client-js nav .secondary-action}, {.cloaked-element}, {.content-overlay} AND {.notifications-overlay .user-button} share 3 declarations - position: absolute - right: 0 - top: 0 {.cloaked-element}, {.content-overlay}, {.overlay}, {.overlay .cleanup li .issue-notice:before}, {.page-list .list-thumb,.topic-title-list .list-thumb,.site-link-list .list-thumb} AND {blockquote:before} share 3 declarations - left: 0 - position: absolute - top: 0 {.alpha .drawer.quick-lookup .watch-this-article,.alpha .drawer.quick-lookup .cancel}, {.alpha .drawer.references .cite .cancel,.beta .drawer.references .cite .cancel} AND {.content-overlay} share 3 declarations - padding-bottom: 1em - padding-top: 1em - position: absolute {.alpha .header > .header-title}, {.client-js nav .secondary-action} AND {.cloaked-element} share 3 declarations - bottom: 0 - position: absolute - top: 0 {.client-js nav .secondary-action}, {.cloaked-element} AND {blockquote:after} share 3 declarations - bottom: 0 - position: absolute - right: 0 {#mw-mf-diffview #mw-mf-userinfo}, {.cloaked-element} AND {.mw-notification-area,.toast,.drawer} share 3 declarations - bottom: 0 - left: 0 - right: 0 {.alpha .mw-mf-cleanup,.beta .mw-mf-cleanup}, {.alpha .pre-content .tagline,.beta .pre-content .tagline} AND {nav ul.hlist li} share 3 declarations - font-size: 0.8em - margin-left: 0 - margin-right: 0 {#mw-mf-diffview #mw-mf-userinfo}, {.overlay-footer-container a} AND {pre} share 3 declarations - padding-bottom: 1em - padding-right: 1em - padding-top: 1em {#mw-mf-diffview #mw-mf-diffarea}, {#mw-mf-diffview #mw-mf-userinfo} AND {pre} share 3 declarations - padding-left: 1em - padding-right: 1em - padding-top: 1em {#mw-mf-diffview #mw-mf-userinfo}, {.notifications-overlay .mw-echo-notification} AND {pre} share 3 declarations - padding-bottom: 1em - padding-left: 1em - padding-right: 1em {.content-overlay} AND {.overlay-footer-container a} share 3 declarations - padding-bottom: 1em - padding-top: 1em - text-align: center {.notifications-overlay .mw-echo-notification} AND {.overlay .panel} share 3 declarations - border-bottom: 1px solid #eee - padding-left: 3.35em - padding-right: 3.35em