reverted:
--- b/core/modules/system/css/system.theme.css
+++ a/core/modules/system/css/system.theme.css
@@ -613,16 +613,16 @@
 }
 
 /* Field display */
+.field .field-label {
-.field__label {
   font-weight: bold;
 }
+.field-label-inline .field-label,
+.field-label-inline .field-items {
-.field-label--inline .field__label,
-.field-label--inline .field__items {
   float:left; /*LTR*/
   padding-right: 0.5em;
 }
+[dir="rtl"] .field-label-inline .field-label,
+[dir="rtl"] .field-label-inline .field-items {
-[dir="rtl"] .field-label--inline .field__label,
-[dir="rtl"] .field-label--inline .field__items {
   float: right;
   padding-left: 0.5em;
 }
reverted:
--- b/core/themes/bartik/css/style.css
+++ a/core/themes/bartik/css/style.css
@@ -120,7 +120,7 @@
 ul.links,
 ul.primary,
 .item-list .pager,
+div.field-type-taxonomy-term-reference,
-.field-type--taxonomy-term-reference,
 div.messages,
 div.meta,
 p.comment-time,
@@ -702,46 +702,46 @@
   color: #68696b;
   margin-bottom: -5px;
 }
+.submitted .field-name-field-user-picture img {
-.submitted .field-name--field-user-picture img {
   float: left; /* LTR */
   margin: 1px 20px 0 0; /* LTR */
 }
+[dir="rtl"] .submitted .field-name-field-user-picture img {
-[dir="rtl"] .submitted .field-name--field-user-picture img {
   float: right;
   margin-left: 20px;
   margin-right: 0;
 }
+.field-type-taxonomy-term-reference {
-.field-type--taxonomy-term-reference {
   margin: 0 0 1.2em;
 }
+.field-type-taxonomy-term-reference .field-label {
-.field-type--taxonomy-term-reference .field__label {
   font-weight: normal;
   margin: 0;
   padding-right: 5px; /* LTR */
 }
+[dir="rtl"] .field-type-taxonomy-term-reference .field-label {
-[dir="rtl"] .field--type-taxonomy-term-reference .field__label {
   padding-left: 5px;
   padding-right: 0;
 }
+.field-type-taxonomy-term-reference .field-label,
+.field-type-taxonomy-term-reference ul.links {
-.field-type--taxonomy-term-reference .field__label,
-.field-type--taxonomy-term-reference ul.links {
   font-size: 0.8em;
 }
+.view-mode-teaser .field-type-taxonomy-term-reference .field-label,
+.view-mode-teaser .field-type-taxonomy-term-reference ul.links {
-.view-mode-teaser .field-type--taxonomy-term-reference .field__label,
-.view-mode-teaser .field-type--taxonomy-term-reference ul.links {
   font-size: 0.821em;
 }
+.field-type-taxonomy-term-reference ul.links {
-.field-type--taxonomy-term-reference ul.links {
   padding: 0;
   margin: 0;
   list-style: none;
 }
+.field-type-taxonomy-term-reference ul.links li {
-.field-type--taxonomy-term-reference ul.links li {
   float: left; /* LTR */
   padding: 0 1em 0 0; /* LTR */
   white-space: nowrap;
 }
+[dir="rtl"] .field-type-taxonomy-term-reference ul.links li {
-[dir="rtl"] .field-type--taxonomy-term-reference ul.links li {
   padding: 0 0 0 1em;
   float: right;
 }
@@ -753,8 +753,8 @@
   margin-right: 236px;
   margin-left: 0;
 }
+.field-type-image img,
+.field-name-field-user-picture img {
-.field-type--image img,
-.field-name--field-user-picture img {
   margin: 0 0 1em;
 }
 ul.links {
@@ -775,10 +775,10 @@
 .comment h2.title {
   margin-bottom: 1em;
 }
+.comment .field-name-field-user-picture img {
-.comment .field-name--field-user-picture img {
   margin-left: 0; /* LTR */
 }
+[dir="rtl"] .comment .field-name-field-user-picture img {
-[dir="rtl"] .comment .field-name--field-user-picture img {
   margin-right: 0;
 }
 .comment {
@@ -1222,7 +1222,7 @@
 
 /* -------------- User Profile   -------------- */
 
+.profile .field-name-field-user-picture {
-.profile .field-name--field-user-picture {
   float: none;
 }