#637: Form field/field group viewport scope - fixed less related failures

Author: yolouiese

app/code/Magento/PageBuilder/view/adminhtml/web/css/source/form/element/_mobile.less

@@ -24,31 +24,31 @@
         }
 
         .admin__field-tooltip-content {
-            background: #707070;
+            background: @color-gray-middle5;
             border: none;
             bottom: auto;
             box-shadow: unset;
             left: -1.9rem;
-            opacity: 0.9;
+            opacity: .9;
             padding: 6px 15px 2px;
-            top: 3rem;
             right: auto;
+            top: 3rem;
             width: 16rem;
 
             p {
-                color: #ffffff;
+                color: @color-white;
                 font-size: 1.2rem;
             }
 
             &:before {
-                border-bottom: 7px solid #707070;
+                border-bottom: 7px solid @color-gray-middle5;
                 border-left: 4px solid transparent;
                 border-right: 4px solid transparent;
                 border-top: unset;
                 content: '';
                 height: 0;
                 left: 20px;
-                opacity: 0.9;
+                opacity: .9;
                 position: absolute;
                 top: -5px;
                 width: 0;