diff -u b/core/themes/bartik/css/components/views.css b/core/themes/bartik/css/components/views.css
--- b/core/themes/bartik/css/components/views.css
+++ b/core/themes/bartik/css/components/views.css
@@ -109,9 +109,6 @@
 
 /* @group Grids */
 .views-view-grid .views-col {
-  -moz-box-sizing: border-box;
-  -webkit-box-sizing: border-box;
-  box-sizing: border-box;
   min-width: 100%;
   padding: 0;
 }
@@ -122,14 +119,14 @@
   padding-bottom: 0;
   padding-top: 0;
 }
+
 /**
  * Responsive grids.
  */
-@media all and (min-width: 540px) {
+@media all and (min-width: 640px) {
   .views-view-grid .views-col {
     float: left;
     min-width: 0;
-    padding: 0 30px;
   }
   .views-view-grid .views-col:first-child {
     padding-left: 0;
@@ -137,13 +134,10 @@
   .views-view-grid .views-col:last-child {
     padding-right: 0;
   }
-  .views-view-grid .views-row {
-    float: none;
-  }
   .views-view-grid .node--view-mode-teaser {
     border-bottom: 0;
     margin: 0;
-    padding: 0;
+    padding: 0 15px;
   }
   .views-view-grid .node--view-mode-teaser h2 {
     padding-top: 0;