diff --git a/Base/res/html/misc/display-grid.html b/Base/res/html/misc/display-grid.html
index d5006157db..16cea2158b 100644
--- a/Base/res/html/misc/display-grid.html
+++ b/Base/res/html/misc/display-grid.html
@@ -29,3 +29,58 @@
   <div class="grid-item">3</div>  
   <div class="grid-item">4</div>
 </div>
+
+<!-- Check for a bug where a github page was crashing due to the following code. -->
+<p>If you can see this message then the test passed.</p>
+<div 
+  class="grid-container"
+  style="
+    --Layout-sidebar-width:296px;
+    grid-template-columns: minmax(0, var(--Layout-sidebar-width));">
+  <div class="grid-item">1</div>
+</div>
+
+<!-- Using grid-row and grid-column -->
+<p>Should render a full-width 4x4 grid with:
+<ul>
+  <li>one large column on the left</li>
+  <li>one large column on the right, being split in half vertically, with the number 2 in the top half, and numbers 3, 4, 5, and 6 in the bottom</li>
+</ul>
+<div 
+  class="grid-container"
+  style="
+    grid-template-columns: 1fr 1fr 1fr 1fr;
+    grid-template-rows: 50px 50px 50px 50px;
+  ">
+  <div class="grid-item" style="grid-row: 1/-1; grid-column: 1/3;">1</div>
+  <div class="grid-item" style="grid-row: 1/3; grid-column: 3/-1;">2</div>
+  <div class="grid-item">3</div>  
+  <div class="grid-item">4</div>
+  <div class="grid-item">5</div>  
+  <div class="grid-item">6</div>
+</div>
+ 
+<!-- Different column sizes -->
+<p>Should render a 2x2 grid with columns 50px and 50%</p>
+<div 
+  class="grid-container"
+  style="
+    grid-template-columns: 50px 50%; 
+    grid-template-rows: auto auto;">
+  <div class="grid-item"
+    style="
+    grid-column: 1 / 1;
+    grid-row: 1 / 1">1</div>
+  <div class="grid-item"
+    style="
+    grid-column: 2 / 2;
+    grid-row: 1 / 1">2</div>
+  <div class="grid-item"
+    style="
+    grid-column: 1 / 1;
+    grid-row: 2 / 2">3</div>  
+  <div class="grid-item"
+    style="
+    grid-column: 2 / 2;
+    grid-row: 2 / 2">4</div>
+</div>