Ensure top bar stays on top of drawflow canvas

Author: benjaminaaron

src/index.html

@@ -23,7 +23,7 @@
         <style>
             #drawflow {
                 width: 100%;
-                height: 100vh;
+                margin-top: 40px;
                 top: 0;
             }
             :root {
@@ -62,6 +62,11 @@
             .top-menu {
                 padding: 10px;
                 font-size: small;
+                position: fixed;
+                top: 0;
+                left: 0;
+                right: 0;
+                z-index: 1000;
             }
             .spanBtn {
                 cursor: pointer;