adjust style

src/client/js/components/PageHistory/PageRevisionTable.jsx

@@ -46,7 +46,7 @@ class PageRevisionTable extends React.Component {
               key={`revision-history-rev-${revisionId}`}
             />
             {hasDiff && (
-              <div className="ml-2 mt-auto">
+              <div className="ml-md-3 mt-auto">
                 <div className="btn-group">
                   <button type="button" className="btn btn-outline-secondary btn-sm" onClick={handleCompareLatestRevisionButton}>
                     {t('page_history.compare_latest')}

src/client/js/components/PageHistory/Revision.jsx

@@ -54,10 +54,10 @@ export default class Revision extends React.Component {
             <strong><Username user={author}></Username></strong>
             {this.props.isLatestRevision && <span className="badge badge-info ml-2">Latest</span>}
           </div>
-          <div>
+          <div className="mb-1">
             <UserDate dateTime={revision.createdAt} />
-            <br className="d-lg-none d-block" />
-            <a className="ml-lg-3" href={`?revision=${revision._id}`}>
+            <br className="d-xl-none d-block" />
+            <a className="ml-xl-3" href={`?revision=${revision._id}`}>
               <i className="icon-login"></i> { t('Go to this version') }
             </a>
           </div>