copying andys changes on gs-pages to master

docs/webroot/gallery.html

@@ -68,7 +68,7 @@ END TEMPLATE-->
           <p>Qualitative Benchmarking: Ordered bubbling via periodic fluidization</p>
         </header>
         <div class="row 50% uniform">
-          <div class="4u 12u(small)" style="width: 250px">
+          <div class="4u 12u(small)">
             <center>
               <iframe src="https://widgets.figshare.com/articles/9905168/embed?show_title=1" 
                width="250" height="350" allowfullscreen="true" frameborder="0"></iframe>
@@ -99,15 +99,9 @@ END TEMPLATE-->
           <p>Qualitative Benchmarking: Dissipation induced clustering instability</p>
         </header>
         <div class="row 50% uniform">
-          <div class="4u 12u(small)" style="width: 250px">
-            <center>
-              <iframe src="https://widgets.figshare.com/articles/9901757/embed?show_title=1" 
-               width="250" height="350" allowfullscreen="true" frameborder="0"></iframe>
-            </center>
-          </div>
-          <div class="8u$ 12u(small)">
+          <div class="8u 12u(small)">
             A homogeneous cooling system (HCS) of size 256 x 256 x 8 particle diameters containing 
-            50k particles (concentration ~5%) with initial thermal Reynolds number of 20, 
+            50k particles (concentration ~5%) with an initial thermal Reynolds number of 20, 
             restitution coefficient of 0.8 and particle-fluid density ratio of 1000. The system is 
             significantly above the critical length scale for the 
             <a href="https://arxiv.org/abs/1809.04173">onset of clustering</a> causing the 
@@ -122,6 +116,12 @@ END TEMPLATE-->
 
             </p>
           </div>
+          <div class="4u$ 12u(small)">
+            <center>
+              <iframe src="https://widgets.figshare.com/articles/9901757/embed?show_title=1" 
+               width="250" height="350" allowfullscreen="true" frameborder="0"></iframe>
+            </center>
+          </div>
         </div>
         <p>