diff --git a/publicsite/index.html b/publicsite/index.html
index 90d3e13..e1dc4c7 100644
--- a/publicsite/index.html
+++ b/publicsite/index.html
@@ -74,7 +74,7 @@
             </div>
 
             <div class="row mt-4">
-                <div class="col-12 col-md-6">
+                <div class="col-12 col-md-6 mb-4">
                     <div class="card border-primary">
                         <div class="card-body">
                             <h4 class="card-title d-flex">/gis: Earth, Weather, and Mapping</h4>
@@ -102,7 +102,7 @@
                     </div>
                 </div>
 
-                <div class="col-12 col-md-6">
+                <div class="col-12 col-md-6 mb-4">
                     <div class="card border-primary">
                         <div class="card-body">
                             <h4 class="card-title d-flex">/logistics: Addresses, Shipping, and Tracking</h4>
@@ -118,7 +118,7 @@
                     </div>
                 </div>
 
-                <div class="col-12 col-md-6">
+                <div class="col-12 col-md-6 mb-4">
                     <div class="card border-primary">
                         <div class="card-body">
                             <h4 class="card-title d-flex">/net: Network and Internet</h4>