diff --git a/proxy/index.html b/proxy/index.html
index 329100d0..ee30f792 100644
--- a/proxy/index.html
+++ b/proxy/index.html
@@ -27,7 +27,7 @@
 <div id="search-backdrop" class="modal backdrop" tabindex="-1" role="dialog">
   <div class="modal-dialog modal-lg modal-dialog-scrollable" role="document">
     <div class="modal-content">
-      <div class="modal-header bg-light">
+      <div class="modal-header">
         <h5 class="modal-title">Search</h5>
         <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close" onclick="hideSearch()"></button>
       </div>
@@ -94,7 +94,7 @@ <h5 class="modal-title">Search</h5>
 <div id="configuration-backdrop" class="modal backdrop" tabindex="-1" role="dialog">
   <div class="modal-dialog modal-dialog-scrollable modal-lg" role="document">
     <div class="modal-content">
-      <div class="modal-header bg-light">
+      <div class="modal-header">
         <h5 class="modal-title">Map configuration</h5>
         <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close" onclick="hideConfiguration()"></button>
       </div>
@@ -116,13 +116,13 @@ <h5 class="modal-title">Map configuration</h5>
           </div>
           <div class="mb-3">
             <label for="backgroundUrl" class="form-label" >Background map tile URL</label>
-            <div>
+            <div class="mb-1">
               <div class="form-check form-check-inline">
                 <input class="form-check-input" type="radio" name="backgroundType" id="backgroundTypeRaster" value="raster" checked onchange="updateConfiguration('backgroundType', 'raster'); updateBackgroundMapStyle();">
                 <label class="form-check-label" for="backgroundTypeRaster">Raster</label>
               </div>
               <div class="form-check form-check-inline">
-                <input class="form-check-input" type="radio" name="backgroundType" id="backgroundTypeVector" value="raster" checked onchange="updateConfiguration('backgroundType', 'vector'); updateBackgroundMapStyle();">
+                <input class="form-check-input" type="radio" name="backgroundType" id="backgroundTypeVector" value="raster" onchange="updateConfiguration('backgroundType', 'vector'); updateBackgroundMapStyle();">
                 <label class="form-check-label" for="backgroundTypeVector">Vector</label>
               </div>
             </div>