Merge pull request #669 from joweecaquicla/636-add-tooltip-with-viewport-label-description

#636:  Responsive breakpoint switcher - adjusted tooltip position.

Author: omiroshnichenko

app/code/Magento/PageBuilder/Test/Mftf/Test/ViewportSwitcherMobile/ViewportSwitcherMobileTabsThroughBlockContentTypeTest.xml

@@ -483,6 +483,7 @@
             <argument name="viewportButton" value="mobile"/>
             <argument name="viewportStage" value="mobile"/>
         </actionGroup>
+        <click selector="{{PageBuilderPanel.searchPanel}}" stepKey="unFocusViewportSwitcher"/>
         <actionGroup ref="openPageBuilderEditPanelSmallByIndex" stepKey="openEditPanelTab1Again">
             <argument name="section" value="TabOnStage"/>
             <argument name="targetIndex" value="1"/>

app/code/Magento/PageBuilder/view/adminhtml/web/css/source/_page-builder.less

@@ -38,10 +38,12 @@
         .tooltip-content {
             background: rgba(49, 48, 43, .8);
             font-size: 12px;
+            margin-left: -69px;
             padding: 7px 9px;
             text-align: left;
 
             &:before {
+                left: 90px;
                 opacity: .65;
             }