diff -u /dev/null b/core/themes/bartik/css/components/site-footer.css
--- /dev/null
+++ b/core/themes/bartik/css/components/site-footer.css
@@ -0,0 +1,155 @@
+/**
+ * @file
+ * Visual styles for Bartik's footer.
+ */
+
+.site-footer .block .content {
+  color: #c0c0c0;
+  color: rgba(255, 255, 255, 0.65);
+  font-size: 0.857em;
+}
+.site-footer .block .content a {
+  color: #fcfcfc;
+  color: rgba(255, 255, 255, 0.8);
+}
+.site-footer .block .content a:hover,
+.site-footer .block .content a:focus {
+  color: #fefefe;
+  color: rgba(255, 255, 255, 0.95);
+}
+.site-footer .block {
+  margin: 20px 0;
+  border: 1px solid #444;
+  border-color: rgba(255, 255, 255, 0.1);
+  padding: 10px;
+}
+.site-footer tr.odd {
+  background-color: transparent;
+}
+.site-footer tr.even {
+  background-color: #2c2c2c;
+  background-color: rgba(0, 0, 0, 0.15);
+}
+
+/**
+ * Visual styles for Bartik's footer bottom region.
+ */
+.site-footer__bottom .block {
+  margin: 0.5em 0;
+  padding: 0;
+  border: none;
+  clear: both;
+}
+.site-footer__bottom .block .content {
+  padding: 0.5em 0;
+  margin-top: 0;
+}
+.site-footer__bottom .block > h2 {
+  /* @extend .visually-hidden */
+  position: absolute !important;
+  clip: rect(1px, 1px, 1px, 1px);
+  overflow: hidden;
+  height: 1px;
+}
+.site-footer__bottom .block h2 {
+  margin: 0;
+}
+.site-footer__bottom {
+  letter-spacing: 0.2px;
+  margin-top: 30px;
+  border-top: 1px solid #555;
+  border-color: rgba(255, 255, 255, 0.15);
+}
+.site-footer__bottom .region {
+  margin-top: 20px;
+}
+
+/**
+ * Visual styles for Bartik's footer bottoms menu.
+ */
+.site-footer__bottom .menu,
+.site-footer__bottom .menu li {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+.site-footer__bottom .menu li a {
+  float: left; /* LTR */
+  padding: 0 12px;
+  border-right: 1px solid #555; /* LTR */
+  border-color: rgba(255, 255, 255, 0.15);
+}
+[dir="rtl"] .site-footer__bottom .menu li a {
+  float: right;
+  border-left: 1px solid #555;
+  border-color: rgba(255, 255, 255, 0.15);
+  border-right: none;
+}
+.site-footer__bottom .menu li:first-child a {
+  padding-left: 0; /* LTR */
+}
+[dir="rtl"] .site-footer__bottom .menu li:first-child a {
+  padding-right: 0;
+  padding-left: 12px;
+}
+.site-footer__bottom .menu li:last-child a {
+  padding-right: 0; /* LTR */
+  border-right: none; /* LTR */
+}
+[dir="rtl"] .site-footer__bottom .menu li:last-child a {
+  padding-left: 0;
+  border-left: none;
+}
+
+/**
+ * Visual styles for Bartik's footer top region.
+ */
+.site-footer__top .block-menu {
+  margin: 0;
+  padding: 0;
+  border: none;
+}
+.site-footer__top h2 {
+  border-bottom: 1px solid #555;
+  border-color: rgba(255, 255, 255, 0.15);
+  font-size: 1em;
+  margin-bottom: 0;
+  padding-bottom: 3px;
+  text-transform: uppercase;
+}
+.site-footer__top .content {
+  margin-top: 0;
+}
+.site-footer__top p {
+  margin-top: 1em;
+}
+.site-footer__top .content ul {
+  list-style: none;
+  padding-left: 0; /* LTR */
+  margin-left: 0;
+}
+[dir="rtl"] .site-footer__top .content ul {
+  padding-right: 0;
+}
+.site-footer__top .content li {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+.site-footer__top a {
+  display: block;
+  border-bottom: 1px solid #555;
+  border-color: rgba(255, 255, 255, 0.15);
+  line-height: 1.2;
+  padding: 0.8em 2px 0.8em 20px; /* LTR */
+  text-indent: -15px;
+}
+[dir="rtl"] .site-footer__top a {
+  padding: 0.8em 20px 0.8em 2px;
+}
+.site-footer__top a:hover,
+.site-footer__top a:focus {
+  background-color: #1f1f21;
+  background-color: rgba(255, 255, 255, 0.05);
+  text-decoration: none;
+}
reverted:
--- b/core/themes/bartik/css/components/site-footer.css
+++ /dev/null
@@ -1,155 +0,0 @@
-/**
- * @file
- * Visual styles for Bartik's footer.
- */
-
-.site-footer .block .content {
-  color: #c0c0c0;
-  color: rgba(255, 255, 255, 0.65);
-  font-size: 0.857em;
-}
-.site-footer .block .content a {
-  color: #fcfcfc;
-  color: rgba(255, 255, 255, 0.8);
-}
-.site-footer .block .content a:hover,
-.site-footer .block .content a:focus {
-  color: #fefefe;
-  color: rgba(255, 255, 255, 0.95);
-}
-.site-footer .block {
-  margin: 20px 0;
-  border: 1px solid #444;
-  border-color: rgba(255, 255, 255, 0.1);
-  padding: 10px;
-}
-.site-footer tr.odd {
-  background-color: transparent;
-}
-.site-footer tr.even {
-  background-color: #2c2c2c;
-  background-color: rgba(0, 0, 0, 0.15);
-}
-
-/**
- * Visual styles for Bartik's footer bottom region.
- */
-.site-footer__bottom .block {
-  margin: 0.5em 0;
-  padding: 0;
-  border: none;
-  clear: both;
-}
-.site-footer__bottom .block .content {
-  padding: 0.5em 0;
-  margin-top: 0;
-}
-.site-footer__bottom .block > h2 {
-  /* @extend .visually-hidden */
-  position: absolute !important;
-  clip: rect(1px, 1px, 1px, 1px);
-  overflow: hidden;
-  height: 1px;
-}
-.site-footer__bottom .block h2 {
-  margin: 0;
-}
-.site-footer__bottom {
-  letter-spacing: 0.2px;
-  margin-top: 30px;
-  border-top: 1px solid #555;
-  border-color: rgba(255, 255, 255, 0.15);
-}
-.site-footer__bottom .region {
-  margin-top: 20px;
-}
-
-/**
- * Visual styles for Bartik's footer bottoms menu.
- */
-.site-footer__bottom .menu,
-.site-footer__bottom .menu li {
-  list-style: none;
-  margin: 0;
-  padding: 0;
-}
-.site-footer__bottom .menu li a {
-  float: left; /* LTR */
-  padding: 0 12px;
-  border-right: 1px solid #555; /* LTR */
-  border-color: rgba(255, 255, 255, 0.15);
-}
-[dir="rtl"] .site-footer__bottom .menu li a {
-  float: right;
-  border-left: 1px solid #555;
-  border-color: rgba(255, 255, 255, 0.15);
-  border-right: none;
-}
-.site-footer__bottom .menu li:first-child a {
-  padding-left: 0; /* LTR */
-}
-[dir="rtl"] .site-footer__bottom .menu li:first-child a {
-  padding-right: 0;
-  padding-left: 12px;
-}
-.site-footer__bottom .menu li:last-child a {
-  padding-right: 0; /* LTR */
-  border-right: none; /* LTR */
-}
-[dir="rtl"] .site-footer__bottom .menu li:last-child a {
-  padding-left: 0;
-  border-left: none;
-}
-
-/**
- * Visual styles for Bartik's footer top region.
- */
-.site-footer__top .block-menu {
-  margin: 0;
-  padding: 0;
-  border: none;
-}
-.site-footer__top h2 {
-  border-bottom: 1px solid #555;
-  border-color: rgba(255, 255, 255, 0.15);
-  font-size: 1em;
-  margin-bottom: 0;
-  padding-bottom: 3px;
-  text-transform: uppercase;
-}
-.site-footer__top .content {
-  margin-top: 0;
-}
-.site-footer__top p {
-  margin-top: 1em;
-}
-.site-footer__top .content ul {
-  list-style: none;
-  padding-left: 0; /* LTR */
-  margin-left: 0;
-}
-[dir="rtl"] .site-footer__top .content ul {
-  padding-right: 0;
-}
-.site-footer__top .content li {
-  list-style: none;
-  margin: 0;
-  padding: 0;
-}
-.site-footer__top a {
-  display: block;
-  border-bottom: 1px solid #555;
-  border-color: rgba(255, 255, 255, 0.15);
-  line-height: 1.2;
-  padding: 0.8em 2px 0.8em 20px; /* LTR */
-  text-indent: -15px;
-}
-[dir="rtl"] .site-footer__top a {
-  padding: 0.8em 20px 0.8em 2px;
-}
-.site-footer__top a:hover,
-.site-footer__top a:focus {
-  background-color: #1f1f21;
-  background-color: rgba(255, 255, 255, 0.05);
-  text-decoration: none;
-}