diff --git a/index.html b/index.html
index 4ba01d24..1fcba31c 100644
--- a/index.html
+++ b/index.html
@@ -3106,8 +3106,8 @@
 
         <div data-tip="Set height exponent, i.e. a value for altitude change sharpness. Altitude affects temperature and hence biomes">
           <div>Exponent:</div>
-          <input id="heightExponentOutput" type="range" min=1.5 max=2.1 value=1.8 step=.01>
-          <input id="heightExponentInput" data-stored="heightExponent" type="number" min=1.5 max=2.1 value=1.8 step=.01>
+          <input id="heightExponentOutput" type="range" min=1.5 max=2.2 value=2 step=.01>
+          <input id="heightExponentInput" data-stored="heightExponent" type="number" min=1.5 max=2.2 value=2 step=.01>
         </div>
 
         <div class="unitsHeader" data-tip="Select Temperature scale">
@@ -3447,7 +3447,7 @@
       </div>
     </div>
 
-    <div id="preview3d" class="dialog stable" style="display: none; padding: 0px" />
+    <div id="preview3d" class="dialog stable" style="display: none; padding: 0px"></div>
 
     <div id="exportMapData" style="display: none" class="dialog">
       <div style="margin-bottom: .3em; font-weight: bold">Download image</div>