diff --git a/views/admin/map_editor.php b/views/admin/map_editor.php
index 12c9a09..fcb92c1 100644
--- a/views/admin/map_editor.php
+++ b/views/admin/map_editor.php
@@ -17,7 +17,7 @@ $jsFiles = [
     <div class="grid">
         <h1>
             <a href="/maps" title="Back to playable maps">
-                <img class="inline" src="<?= $_ENV['STATIC_ROOT'] ?>/img/icon.svg?rev=<?= REVISION ?>">
+                <img class="inline" width="1em" height="1em" src="<?= $_ENV['STATIC_ROOT'] ?>/img/icon.svg?rev=<?= REVISION ?>">
                 <span>MapGuesser</span>
             </a>
         </h1>
@@ -25,7 +25,7 @@ $jsFiles = [
             <span class="bold"><a href="javascript:;" id="mapName" title="Edit map data"><?= $mapName ?></a></span><!--
          --><span><!--
                 <?php /* Copyright (c) 2019 The Bootstrap Authors. License can be found in 'USED_SOFTWARE' in section 'Bootstrap Icons'. */ ?>
-             --><svg class="inline" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
+             --><svg class="inline" width="1em" height="1em" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
                     <path fill-rule="evenodd" d="M8 3.5a.5.5 0 0 1 .5.5v4a.5.5 0 0 1-.5.5H4a.5.5 0 0 1 0-1h3.5V4a.5.5 0 0 1 .5-.5z"/>
                     <path fill-rule="evenodd" d="M7.5 8a.5.5 0 0 1 .5-.5h4a.5.5 0 0 1 0 1H8.5V12a.5.5 0 0 1-1 0V8z"/>
                     <path fill-rule="evenodd" d="M14 1H2a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V2a1 1 0 0 0-1-1zM2 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H2z"/>
@@ -34,14 +34,14 @@ $jsFiles = [
          --></span><!--
          --><span><!--
                 <?php /* Copyright (c) 2019 The Bootstrap Authors. License can be found in 'USED_SOFTWARE' in section 'Bootstrap Icons'. */ ?>
-             --><svg class="inline" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
+             --><svg class="inline" width="1em" height="1em" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
                     <path d="M15.502 1.94a.5.5 0 0 1 0 .706a.5.5 0 0 1 .707 0l1.293 1.293zm-1.75 2.456l-2-2L4.939 9.21a.5.5 0 0 0-.121.196l-.805 2.414a.25.25 0 0 0 .316.316l2.414-.805a.5.5 0 0 0 .196-.12l6.813-6.814z"/>                    <path fill-rule="evenodd" d="M14 1H2a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V2a1 1 0 0 0-1-1zM2 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H2z"/>
                 </svg>
                 <span id="edited" class="bold">0</span><!--
          --></span><!--
          --><span><!--
                 <?php /* Copyright (c) 2019 The Bootstrap Authors. License can be found in 'USED_SOFTWARE' in section 'Bootstrap Icons'. */ ?>
-             --><svg class="inline" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
+             --><svg class="inline" width="1em" height="1em" viewBox="0 0 16 16" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
                     <path fill-rule="evenodd" d="M3.5 8a.5.5 0 0 1 .5-.5h8a.5.5 0 0 1 0 1H4a.5.5 0 0 1-.5-.5z"/>
                     <path fill-rule="evenodd" d="M14 1H2a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1V2a1 1 0 0 0-1-1zM2 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H2z"/>
                 </svg>
diff --git a/views/game.php b/views/game.php
index ef1ef19..d31d7aa 100644
--- a/views/game.php
+++ b/views/game.php
@@ -12,7 +12,7 @@ $jsFiles = [
     <div class="grid">
         <h1>
             <a href="/maps" title="Back to playable maps">
-                <img class="inline" src="<?= $_ENV['STATIC_ROOT'] ?>/img/icon.svg?rev=<?= REVISION ?>">
+                <img class="inline" width="1em" height="1em" src="<?= $_ENV['STATIC_ROOT'] ?>/img/icon.svg?rev=<?= REVISION ?>">
                 <span>MapGuesser</span>
             </a>
         </h1>
diff --git a/views/templates/header.php b/views/templates/header.php
index b4998c8..62db163 100644
--- a/views/templates/header.php
+++ b/views/templates/header.php
@@ -1,7 +1,7 @@
 <div class="header">
     <h1>
         <a href="/" title="MapGuesser">
-            <img class="inline" src="<?= $_ENV['STATIC_ROOT'] ?>/img/icon.svg?rev=<?= REVISION ?>">
+            <img class="inline" width="1em" height="1em" src="<?= $_ENV['STATIC_ROOT'] ?>/img/icon.svg?rev=<?= REVISION ?>">
             MapGuesser
         </a>
     </h1>
diff --git a/views/templates/main_header.php b/views/templates/main_header.php
index 6c2bb17..89b5a87 100644
--- a/views/templates/main_header.php
+++ b/views/templates/main_header.php
@@ -23,7 +23,7 @@
 </head>
 <body>
     <div id="loading">
-        <img src="<?= $_ENV['STATIC_ROOT'] ?>/img/loading.svg?rev=<?= REVISION ?>">
+        <img src="<?= $_ENV['STATIC_ROOT'] ?>/img/loading.svg?rev=<?= REVISION ?>" width="64" height="64">
     </div>
     <div id="cover"></div>
     <div id="modal" class="modal">