回到顶部按钮设置为浮动

resources/views/layouts/vertical.blade.php

@@ -29,7 +29,7 @@
                 v{{ Dcat\Admin\Admin::VERSION }}
             </span>
 
-            <button class="btn btn-primary btn-icon scroll-top pull-right" style="bottom: 2%;display: none">
+            <button class="btn btn-primary btn-icon scroll-top pull-right" style="position: fixed;bottom: 2%; right: 10px;display: none">
                 <i class="feather icon-arrow-up"></i>
             </button>
         </p>