update

frontend/src/css/file-history-old.css

@@ -20,7 +20,7 @@
   font-size: 25px;
   color: #ccc;
   float: left;
-    margin-left: -20px;
+  margin-left: -3rem;
 }
 
 .old-history-main .go-back:hover {
@@ -89,3 +89,9 @@
 .old-history-more-operation i:hover {
   color: #666;
 }
+
+@media (max-width: 768px) {
+  .old-history-main .go-back {
+    margin-left: -2rem;
+  }
+}

frontend/src/file-history-old.js

@@ -216,7 +216,6 @@ class FileHistory extends React.Component {
                 <span className="fas fa-chevron-left"></span>
               </a>
               <h2><span className="file-name">{fileName}</span>{' '}{gettext('History Versions')}</h2>
-              <p>{gettext('A new version will be generated after each modification, and you can restore the file to a previous version.')}</p>
             </div>
             <div>
               {this.state.isLoading && <Loading />}