Improvements for mobile

app/assets/stylesheets/pages/environments.scss

@@ -18,7 +18,17 @@
 .environments {
   table-layout: fixed;
-  .environments-commit
+  .environments-commit,
+  .environments-actions,
+  .environments-deploy,
+  .environments-build,
+  .environments-date {
+    position: static;
+    float: none;
+    display: table-cell;
+  }
+
+  .environments-commit,
   .environments-actions {
     width: 20%;
   }
@@ -26,11 +36,11 @@
   .environments-deploy,
   .environments-build,
   .environments-date {
-    width: 10%;
+    width: 11.6%;
   }
   .environments-name {
-    width: 30%;
+    width: 25%;
   }
   .deployment-column {