fix-issue-19399 into 2.3-develop branch

speedy008 · speedy008 · commit 7ef0c2c82758 · 2018-11-26T14:15:30.000+05:30
diff --git a/app/design/adminhtml/Magento/backend/Magento_Backend/web/css/source/module/main/_collapsible-blocks.less b/app/design/adminhtml/Magento/backend/Magento_Backend/web/css/source/module/main/_collapsible-blocks.less
@@ -127,6 +127,21 @@
                 }
             }
         }
+
+        td.admin__collapsible-block-wrapper {
+            .admin__collapsible-title {
+                &:before {
+                    content: @icon-expand-open__content;
+                }
+            }
+            &._show {
+                .admin__collapsible-title {
+                    &:before {
+                        content: @icon-expand-close__content;
+                    } 
+                }
+            }
+        }
     }
 
     &.fieldset-wrapper {

Original file line number	Diff line number	Diff line change
`@@ -127,6 +127,21 @@`
`127`	`127`	`}`
`128`	`128`	`}`
`129`	`129`	`}`
	`130`	`+`
	`131`	`+ td.admin__collapsible-block-wrapper {`
	`132`	`+ .admin__collapsible-title {`
	`133`	`+ &:before {`
	`134`	`+ content: @icon-expand-open__content;`
	`135`	`+ }`
	`136`	`+ }`
	`137`	`+ &._show {`
	`138`	`+ .admin__collapsible-title {`
	`139`	`+ &:before {`
	`140`	`+ content: @icon-expand-close__content;`
	`141`	`+ }`
	`142`	`+ }`
	`143`	`+ }`
	`144`	`+ }`
`130`	`145`	`}`
`131`	`146`
`132`	`147`	`&.fieldset-wrapper {`